be concerned about concern aboutbe concerned about 和 concern about 的区别!

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beconcernedaboutconcernaboutbeconcernedabout和concernabout的区别!beconcernedaboutconcernaboutbeconcerned

be concerned about concern aboutbe concerned about 和 concern about 的区别!
be concerned about concern about
be concerned about 和 concern about 的区别!

be concerned about concern aboutbe concerned about 和 concern about 的区别!
两个意思上没什么区别,一个用的是concern的形容词形式,一个用的是名词形式

be concerned about 关心,挂念
concern about . . 对…的关心/忧虑

be concerned about . .
vt. 关心(挂念)
concern about . .
对…的关心/忧虑