Machine tools for metal cutting comprise the principal manufacturing equipment in the machine shop.
金属切削机床是机械加工车间的主要生产设备.(动名词)
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An infinitive or gerund is just one of the verb forms and not a verb.
不定词或动名词只是动词其中的一个形态,而它们不是动词,所以他们与动词的时态毫无关系.
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There are two types participle in English: the past participle and the present participle.
英语文法中,动名词具有与现在分词完全一样的形式.
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In English grammar, gerund has exactly the same form as the present participle.
英语语法中, 动名词具有与现在分词完全一样的“形式”.
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Sometimes , gerund or infinitive can also used to be the subject of the sentence.
动名词和不定词也可以当作句子的主词.
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动名词有名词的作用,但现在分词或用作谓语动词的一部分,或用作形容词。
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