听到这件事我很难过的英文I am sorry to hear that.为什么不可以是I am sorry to hear this.
问题描述：
听到这件事我很难过的英文I am sorry to hear that.为什么不可以是I am sorry to hear this.
答
Because the meaning of "that" and "this"is familiar
答
英语里面有很多习惯用语,这也属于其中一个.