She is always helpful ____others.填介词
人气：105 ℃ 时间：2019-12-24 09:59:31
解答
to
be helpful to.对……有益处
I suspect he was just fishing for information that might be helpful to his own company.
我怀疑他只是想探听一些可能对自己公司有帮助的消息.
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