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英语翻译help helpful helps helped这些什么意思呢?哪个用来形容同学呢?

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英语翻译
help helpful helps helped这些什么意思呢?哪个用来形容同学呢?
英语翻译help helpful helps helped这些什么意思呢?哪个用来形容同学呢?
How long,how much time,how many hours 多长时间,多少时间,几个小时?
How often 是多么经常,多长时间发生一次.
help 动词原形,
helpful形容词,有助的,
helped 过去时,过去分词.He helped me before.He has just helped his mother cook dinner.
helps 一般现在时,第三人称,动词原形后面加 s.He helps his mother cook dinner everyday.
再问: 请问help helpful helps helped这些什么意思呢?哪个用来形容同学呢?
再答: 某同学对你很有帮助:He (She) is very helpful to me (to other people/to us).