| 词汇 | perfect tense |
| 释义 | perfect tense 主要翻译 perfect tense n (grammar: have done, etc.) (语法)完成时In English, perfect tenses are formed with the auxiliary "have" and a past participle. 复合形式： future perfect tense n (grammar: will have done, etc.) (语法)将来完成时 present perfect tense, present perfect n (grammar: have been, etc.) (语法结构为：have + 过去分词)现在完成时态In this exercise, students have to decide whether to use the present perfect tense or the past simple tense. |
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