| 词汇 | must have done |
| 类别 | 英汉互译在线翻译词典 |
| 释义 | must have done [英] [mʌst hæv dʌn] [美] [mʌst hæv dʌn] [短语] 一定是做了... 词频排名 14648/55435 学习人数 18 难度等级 10/10 认知比例 57.14% 例句 You must have done a lot of research on your topic. 你对你的课题一定做过很多研究。 "It must have rained last night, for the ground is wet." 昨晚一定下雨了，因为地面还是湿的。 I must have done something wrong. 我一定是做错了什么。 助记 联想 ❤表推测的情态动词-must：肯定推测 只有2种 "1.对现在，将来：must do →you must be drunk (a),现在推测你醉了，drunk此处为adj，v是be" 2.对过去：must have done →you must have drunk (V. PP)a lot yesterday. 对过去推测，drunk此处为v.分词形式 |
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