She must be sick, Tatiana thought.

她一定是病了，塔蒂亚娜心想。

I was scared that I might be sick.

我担心我可能病了。

It's great to go on the roller coaster five times and not be sick.

能坐5次过山车而不吐真够棒的。

It's a bore to be sick, and the novelty of lying in bed all day wears off quickly.

生病是件无趣的事，整天躺在床上的新鲜感很快就没了。

Don't be sick.

不要生病！