重点讲解:
1. by the end of 到...结束时
By the end of the holiday I had spent all my money.
到那个假期结束时我已经花光了我所有的钱
。2. be willing to do sth. 乐意做某事
I'm perfectly willing to discuss the problem.
我十分乐意讨论这个问题
。3. bring an end to 结束;使...完结
The trip will bring to an end years of estrangement between the two countries.
此行将会结束两国多年来的疏远关系
。4. take part in 参与
I was quite sulky, so I didn't take part in much.
我相当闷闷不乐,所以没有怎么参与
。