C-10：cry over spilt milk 覆水难收
A:I failed in the exam again. I should have prepared for the exam.
A：我考试又不及格。我早该作好考试准备的。
B:There's no point crying over spilt milk, as long as you study hard in future.
B：吃后悔药是没用的，只要你以后好好学就行了。
A:I will. But I have some difficulty in learning physies. Will you please help me?
A：我会的。但是我觉得物理学起来有些难。你能帮帮我吗？
B:OK. If you have any question, just come and ask me.
B：好的。你有什么问题的话，来问我就行了。
