perfect tense是什么意思 perfect tense怎么读
perfect tense的英文翻译是什么意思，词典释义与在线翻译
Noun:- a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)
perfect tense的用法和样例
用作名词 (n.)
- Learn to express something with Past Perfect Tense.
学习使用过去完成时态。 - The verb must be in the present perfect tense.
动词必须用现在完成时态。
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