前面的是表示被动,后面主动
be concerned about和concern about的区别
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相关问题
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be concerned about concern about
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concern about 和be concerned about意思相同吗
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是用be concerned about 还是用concern about:两者有什么区别?
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be concerned about造句
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concern with/about/for 的区别
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be concerned about的concerned是形容词吗?还是被动
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be concerned about ,concern about 不都有担心……的意思吗?为什么省略句中不能用conc
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用upset be concerned about suffer from
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concern 及物动词,使担忧,但为什么还有 be concerned about
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We are seriously concerned about.Are 同concern