■ 一般来说，wallet 指男士的钱包，而 purse 指女士的钱包。
悄悄地给某人小费 slip a tip to someone
A：Why did you slip a tip to the waiter at the restaurant?
在饭店的时候，你为什么悄悄地给服务员小费？
B：Because I didn't want my wife to know.
因为我不想让我妻子知道。
slip /sl?p/ v. （不惹人注意地）悄悄地给；迅速放置
期望得到小费 expect a tip
A：That waitress is expecting a tip.
那个服务员期望得到一笔小费。
B：I'm not giving her a tip. She's surly and slow, and doesn't deserve one.