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以太坊ever

發布時間: 2021-08-14 21:21:41

『壹』 在英語中that的意思有多少種,有什麼用處

that 1
/ ðæt; ðæt/ det (pl those / ðəuz; ðoz/)
(used to make a person or thing specific, esp when he/it is seen as distant in space or time from the speaker/writer 用以指人或事物, 尤指在空間或時間上較遠的): Look at that man standing there. 瞧站在那兒的那個男子. * That box is bigger than this. 那個盒子比這個大. * How much are those apples at the back? 後邊那些蘋果多少錢? * Where did that noise come from? 那響聲從哪兒來的? * Have you read that book about China? 你讀過那本關於中國的書嗎? * I was still living with my parents at that time/in those days, ie at that particular time in the past. 我那時還跟父母住在一起. Cf 參看 this.
(a) (used to specify a person or thing that is indicated or mentioned 用以指要表明的或要提及的人或事物): Did you see that boy? 你看見那個男孩兒了嗎? * He began by writing a thriller. That book sold a million copies. 他是寫驚險小說起家的. 那本書賣了一百萬冊. (b) (used with a n followed by a possessive 與名詞連用, 後接物主代詞): Did you meet that friend of his? 你見過他的那個朋友嗎? * That dress of hers is too short. 她那件連衣裙太短了.
(used in front of the antecedent of a relative clause 用於關系從句的先行詞前): Have you forgotten about that money I lent you last week? 你忘了上星期我借給你的錢了吧? * Those students who failed the exam will have to take it again. 考試不及格的學生需補考. * Who was that man you were talking to? 剛才你正和一個人說話, 他是誰?
> that adv to that degree; so 達到那樣的程度; 如此; 這般: I can't walk that far, ie as far as that. 我可走不了那麽遠. * They've spent that much, ie as much as is indicated. 他們花了那些錢. * It's about that long, ie as long as that. 那個東西大約有那麽長. * It isn't all thatcold, ie not as cold as you are suggesting or not extremelycold. 還沒冷到那種程度(不像你說的那麽冷或極冷). that 2
/ ðæt; ðæt/ pron (pl those / ðəuz; ðoz/)
(a) (used to make a thing specific, esp one more distant in space or time than another 用以表示所指的事物, 尤指在空間或時間上較另一事物遠的): Those look juicier than these. 那些顯得比這些汁液多. * That's a nice hat. 那頂帽子很好. (b) (referring to people, only with the verb be 用以指人, 只能與動詞be連用): That's Peter at the bus-stop. 在公共汽車站那兒的那個人是彼得. * Who's that? 那是誰?
(used to specify a thing, an event, an idea, etc that is indicated or mentioned 用以指要表明的或要提及的事物、 想法等): Look at that! 看那個! * Do you remember going to Norway? That was a good holiday. 你還記得去挪威的情景嗎? 那個假期真好. * Send her some flowers that's the easiest thing to do. 給她送些花兒去--那是最好辦的事.
(used as the antecedent of a relative clause 用作關系從句的先行詞): Is that what you really think? 你真的那樣想嗎? * That's what he told me. 他就是那麽跟我說的. * Those who expect the worst are less likely to be disappointed. 把事情想得壞的人, 不容易失望. * Those present were in favour of a change. 出席的人都贊成改一改. * There are those who say (ie Some people say) she should never have been appointed. 有人說根本就不應該委派她.
(idm 習語) `that is (to say) (a) which means 就是; 即: He's a local government administrator, that is to say a Civil Servant. 他是地方行政官員, 也就是說是文官. (b) to be specific 確切地: She's a housewife when she's not teaching English, that is. 她是個家庭主婦--是指她不教英語的時候. ,that's `that (used to indicate the end of a discussion, search, development, etc 用以表示談論、 調查、 進展等的結束): I take it that's that we've heard your final offer? 我看就這樣了--我們已經了解到你們出的最高價了吧? * So that's that. At last we're all agreed. 就這樣了. 我們終於取得了一致的意見. that 3
/ ðət; ðət; rare strong form ç½ǖï¹ū 强读å¼ǒ ðt; ðæt/ conj
(used to introce a clause that is the subject or object of a v 用以引導主語從句或賓語從句): That the attempt to save her had failed soon became widely known. 想救她而未救成, 此事不久已盡人皆知. * She said that the book was based on a true story. 她說那本書取材於一件真事. * I thought that 13 May would be the date of the election. 我以為5月13日是選舉的日子. * It's possible that he hasn't received the letter. 可能他還沒收到那封信呢.
(rhet 修辭) (used to express wishes and regrets 用以表示願望和遺憾): Oh that I could see him again! 我真希望能再見到他! * That I should see a child of mine arrested for selling drugs! 我竟然看見自己的孩子因販毒而被捕! that 4
/ ðət; ðət; rare strong form ç½ǖï¹ū 强读å¼ǒ ðt; ðæt/ rel pron 關系代詞
(used to introce a defining clause after a n, esp referring to things 用以引導名詞之後的限定從句, 尤指表示事物的) (a) (as the subject of the v in the clause 在從句中作主語): The letter that came this morning is from my father. 今天早晨收到的那封信是我父親寄來的. * The clothes that are on the floor are dirty. 地板上的那些衣物是臟的. * The woman that spoke to me in the shop used to live next door. 在商店裡跟我說話的那個女人從前就住隔壁. * Who was it that won the World Cup in 1982? 誰贏得了1982年的世界盃? (b) (as the object of the v in the clause, but usu omitted in this position 在從句中作賓語, 但通常省略此字): The watch (that) you gave me keeps perfect time. 你給我的那個表走得很准. * Here are the books (that) I borrowed from you a week ago. 這些是我一周前向你借的書. * The person (that) I have to phone lives in India. 我要打電話找的那個人住在印度. (c) (as the object of a prep in the clause, but usu omitted in this position 在從句中作介詞賓語, 但通常省略此字): The photographs (that) you're looking at were taken by my brother. 你看的那些相片是我哥哥拍的. * The man (that) I was talking to had just arrived from Canada. 我與之談話的那個人剛從加拿大來. * These are the children (that) I looked after last summer. 這都是去年夏天我照看的孩子.
(used to introce a clause following superlatives, the only, all, etc 用以引導形容詞最高級以及the only、 all等之後的從句): Shakespeare is the greatest English writer that ever lived. 莎士比亞是有史以來最偉大的英國作家. * This is the most expensive watch (that) I've ever owned. 在我所有的表當中, 這個最貴. * The only part of the meal (that) I really liked was the dessert. 這頓飯只有甜食是我愛吃的. * All that I have is yours. 凡我所有都是你的.
(used after an expression of time instead of when 用於表示時間的詞語之後, 代替when): the year that my father died 我父親去世的那年 * the day that war broke out 戰爭爆發的那天.

出自牛津第六版

其實記兩種就好:一種是指示代詞,意思是「那個」
eg:that boy 那個男孩

另一種就是在從句中,定語從句中的關系代詞,強調句中的標志之一「It is/was... that」

『貳』 LINK, ChainLink是什麼

LINK

1.簡介

LINK是基於以太坊區塊鏈的ERC20標准化代幣,用於支付Chainlink節點運營商,以便從脫鏈數據中檢索數據,將數據格式化為區塊鏈可讀格式,脫鏈計算以及保證正常運行時間。Chainlink代幣作為運行節點的一部分,可防止不良參與者。

2.項目介紹

首個分散的 Oracle 網路,允許任何人安全地提供智能合同,訪問關鍵的外部數據,離線支付和任何其他 API 功能。任何擁有數據 feed、離線服務(如本地付款)或任何其他 API 的用戶均可以直接將其提供給智能合同,以換取 LINK 令牌。ChainLink網路是ChainLink節點的分布式網路,它們都直接將特定數據、API和各種離線支付功能的使用輸送給智能合約。Chainlink網路由兩個獨立的部分組成,鏈上鏈和外鏈,它們必須交互以提供服務。該網路的構建方式使其可以升級,因此可以在更好的技術和技術出現時替換其不同的組件。網路的鏈上組件通過服務級別協議(SLA)基於智能合約的一方請求的度量來過濾神諭。使用這些指標,Chainlink收集對SLA查詢的響應,使用聲譽和聚合模型對它們進行排序,並提供可能實施到智能合約中的Chainlink查詢的最終集合結果。網路的鏈外組件由連接到以太坊網路的Oracle節點組成,這些網路獨立收集對離線請求的響應。這些脫鏈節點可以位於任何行業內,例如紐約證券交易所運營的脫鏈節點可以為Chainlink網路提供實時准確的交易信息,或者Visa網路脫鏈節點可以解決交易通過Chainlink網路與消費者和供應商進行交互。Chainlink技術旨在將來自所有這些行業的節點集成到一個通用網路中,該網路本身充當(低成本)中間人,根據需要解釋並正確分配數據。Chainlink系統將確保從神諭中得到的結果是准確的,並且允許神諭與他們提供的數據保持獨立。任何數據,付款,電子簽名或其他API提供商以及個人開發人員都可以通過將他們熟悉的API連接到網路,輕松加入Chainlink網路。一旦API連接到ChainLink,用戶就成為ChainLink節點操作員,並負責將該API連接到ChainLink網路。為了激勵運營商提供API信息,他們在LINK令牌中得到了補償,以便成功完成在線鏈接請求。該項目目前提供了一個完全分布式的與比特幣,以太坊和Hyperledger兼容的神諭網路。預計未來將支持其他區塊鏈,這將允許智能合約與任何其他公共或私有連鎖之間的跨鏈連接,允許世界上的任何人使用Chainlink網路,無論其平台如何。所有服務提供商都將能夠安全地提供智能合同,以訪問關鍵的外部數據,甚至可能還有非連鎖支付。

3.評述

Chainlink(LINK)是一個分散的網路,可為智能合約提供信息(oracle)。 Chainlink由謝爾蓋·納扎羅夫(Sergey Nazarov)和史蒂夫·埃利斯(Steve Ellis)於2017年成立,旨在通過智能合約為其執行參數解決鏈下信息采購問題。智能合約被設計為在滿足某些參數時自動執行,但是,當這些參數在鏈下存在時,則依賴於信息源(稱為oracle)來提供必要的信息。脫鏈預言者往往是集中的,並且依賴於第三方以可信賴且時間緊迫的方式提供關鍵信息。 ChainLink旨在通過分散的預言網路將信息提供給智能合約,從而打破這種依賴性,這些預言在Link區塊鏈上協同工作,以驗證並將關鍵信息轉發給這些合約。 ChainLink網路允許擁有數據饋送或信息承載API的用戶輕松地向智能合約提供信息,以換取LINK令牌。大事記2017年9月-ChainLink ICO。2018年11月-收購Town Crier(智能合約和數據隱私項目)。2019年6月13日-宣布與Google合作效用鏈接網路通過Oracle的分散網路(數據源和API)向智能合約提供及時,准確的信息。該信息對於有效和准確地執行智能合約至關重要,因為所需信息存在於鏈下,並且必須有一種可靠的方法來獲取鏈上信息。 LINK令牌用作使用Link Network提供的數據的智能合約的付款,其中提供准確信息的預言機將按所佔LINK的比例進行獎勵。重要功能與SWIFT和Google等主要行業參與者的合作夥伴關系以太坊側鏈的整合,例如Harmony,Celer和Matic。平均區塊時間n / a;總供應量10億LINK;通過閾值簽名將Oracle Consensus寫入以太坊區塊鏈。

相關鏈接:https://chain.link/

https://en.bitcoinwiki.org/wiki/ChainLink

https://everipedia.org/wiki/lang_en/chainlink-cryptocurrency

https://blog.chain.link/threshold-signatures-in-chainlink/

https://blockonomi.com/chainlink-guide/

 

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