| 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） |