| 词汇 | principal parts |
| 释义 | principal partsBrE /ˌprɪnsəpl ˈpɑːts/ NAmE /ˌprɪnsəpl ˈpɑːrts/ noun [pl. ] (grammar语法) the forms of a verb from which all the other forms can be made . In English these are the infinitive (for example swim ), the past tense (swam ) and the past participle (swum ).（动词）主要部分，主要形式（英语中有动词的不定式、过去时和过去分词） |
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