the speech which he made concerning the project has been very encouraging
问题描述：
the speech which he made concerning the project has been very encouraging
分析一下这个句子,并流畅翻译
答
the speech(主语） which he made concerning the project（定语从句） has been （系动词）very encouraging（表语）
他作的有关那个工程的演讲反应十分热烈（非常令人鼓舞）为什么用concerning 不用concerned 假如没有hemade 可以用whichconcerned 么concerning 是介词 “关于，就 ”
如：
information concerning our holiday.
关于我们度假的消息。