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coo的一般过去时为：cooed...
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coo的现在进行时为：cooing...
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She paused to coo at the baby.她停下来，轻声地对着婴儿说话。She paused to coo at the baby...她停下来，轻声地对着婴儿说话。He must quit himself before Mk. Coo dismissed him.他不能等曹先生辞他,只好自己先滚吧!Coo, look at him!唔，你看看他！...
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She paused to coo at the baby.她停下来，轻声地对着婴儿说话。Coo, look at him!唔，你看看他！He must quit himself before Mk. Coo dismissed him.他不能等曹先生辞他,只好自己先滚吧!...
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coo的第三人称单数（三单）为：coos...
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vi.（鸽）咕咕地叫，低声软语地说，温柔亲切地说vt.（鸽）咕咕地叫，温柔可爱地说话n.咕咕声，鸽子的叫声...
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coo的现在完成时为：cooed...