If you don't know what you want, you might end up getting something you don't want.
如果你不知道自己想要什么，到头来你可能得非所愿。
2.worth of 等值的
A thousand pounds worth of jewellery and silver has been stolen.
价值1,000英镑的珠宝和银饰被盗。
3.get in the way 阻碍
Big business will never let petty nationalism get in the way of a good deal.
大企业永远不会让狭隘的民族主义妨碍它们做大好的买卖。
4.go to waste 浪费
So much of his enormous effort and talent will go to waste if we are forced to drop one hour of the film
如果我们被迫把电影缩短1小时，那么他付出的许多努力就会白费，他的才华也将大半被淹没。
5.a piece of 一片
He forked an egg onto a piece of bread and folded it into a sandwich.
他用叉子叉了个鸡蛋放在面包上，然后把面包片折起做成了三明治。
