present and past perfect 中文意思是什麼

present and past perfect 解釋
現在完成時和過去完成時
  • present : adj 1 在座的,出席的,在場的,到(場)的;現存的,存在的 (opp absent)。2 現在的,今天的,當前的...
  • and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
  • past : adj 1 過去的;完了的。2 剛過去的,上(月、星期等),前(…年)。3 前任的;曾任的;老練的。4 【語法...
  • perfect : adj 1 完全的,完美的;圓滿的,理想的;純粹的。2 熟練的,精通的 (in)。3 絕對的,毋容置疑的;分毫...
  1. " recently " has the widest use, in positive and negative statements and questions, with the past tense and the present perfect tense

    「recently」用法最廣,可用於肯定式陳述句、否定式陳述句及疑問句中,與過去時態和現在完成時態連用。
  2. To grasp “ the present perfectand the irregular verbs ' past tense & past participle tense

    掌握現在完成時態以及不規則動詞的過去時態和過去分詞。
  3. We use the present perfect to talk about something that began in the past and still continues now

    我們使用現在完成式去說明某事開始於過去並持續到現在。
  4. Present perfect as opposed to past simple. past simple as opposed to past continuous and past perfect

    現在完成時和一般過去時的對比;一般過去時和過去進行時、
  5. This ability to harbor memories also makes it a perfect tool to heal old emotional and physical injuries from the past that effect the present

    目前中國市場上產的藍瑪瑙製品,多半由人工染色而成,其色濃均,易與天然者區分。
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