判断下面句中动词不定式的功能: Our main task is to realize peace of the whole world．

You look like light-hearted. Nothing seems to you....

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-Is Bob still teaching? -I’m afraid not. He is sa...

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It was nothing but his ten years of hard work that...

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bottle造句

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民间音乐在人们的生活中起着重要的作用.特别是为了劳动...

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