用concern sb. about/for…举个例子

用concern sb. about/for…举个例子 concern oneself for sb.这个句型怎么用?举个例子? look sb sth=look sth for sb .look是双宾结构吗,分别举个例子. be good to sb.举个例子 什么是sb举个例子Rt 举个例子,说明谁是SB sb can do sth举个例子 sb can't do sth举个例子 用feel concern for sb 造句 concern oneself about/for 什么时候用动词不定式句个例子举个例子 out of concern for sb. have no concern for sb