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不同的場合運(yùn)用合適的語言很重 本句中, it 是形式主語,真正的主語是后面的動詞不定式短語 to learn how to use proper language。動詞不定式短語可以作主語,故本句也可 To learn how to use the right languages in different situations is important. will also help you munitate better with other 短語 municate with He municated with his parents