cause of concern 还是cause for concern 还是有什么区别的这两个

cause of concern 还是cause for concern 还是有什么区别的这两个 real cause for concern The population of Africa is ____ so rapidly as to cause concern of the whole world.A.expanding B.stretching C.extending D.spreading He emphasized,though,the real cause for concern is the location of Wednesd. 'cause=of cause letter of concern是什么意思? be of concern a matter of concern be of no concern ...a cause for concern.While it is true that this is a cause for concern, let us not overreact请教a cause for concern的意思谢谢 what's the meaning of “The phenomenon is a serious cause for concern.” 这里cause什么意思就是说这个现象是一个严重的要关注的原因咯？ 英语翻译“这是与我无关”的英文翻译应该是It's no concern of me.还是It's no concern of mine. none of your concern?none of sb's concern. out of concern for sb. 英语翻译我乱花钱的原因是 翻译成the cause of i waste money还是 the cause of i wasting Concern is their own concern on the love of reason+of还是for,cause+of还是for?只能这样搭配吗 concern