想请教以下句式的用法(1) It is a matter of concern to ...(2) It has been recognized that ...(3) We generally expect that...(4) can aggravate the problem of...
问题描述：
想请教以下句式的用法
(1) It is a matter of concern to ...
(2) It has been recognized that ...
(3) We generally expect that...
(4) can aggravate the problem of...
答
第一句指的是额.怎么说.就是某件事需要考虑的
第二局是指.就是某件事被认出了或者是赞同了,或者提出了
第三是我们的期望是.
会使某个问题恶化