1. tamper with

篡改；贿赂；胡乱摆弄

eg. He tried to tamper with the witness.

他试图收买那个证人。

eg. When you tamper with this position, you are asking for trouble.

若是你损害了这一定位，那么你就是在自找麻烦。

2. worry about

焦虑…；担心…

eg. I have nothing to worry about in this life.

我这一生都很省心。

eg. Today he does not have to worry about making a living.

现在他不用为生活发愁了。

3. get sick

生病；患病

eg. What if I get sick?

—如果我生病了怎么办？

eg. No one in America should go broke because they get sick.

美国的任何一个公民都不会因为生病而破产。