get at cold 患上感冒

get 会在很多情况下充当 have，如果有“get+病名”的形式，就表示“患上……”，“得……” 的意思。

例句：

I've got the runs.

我拉肚子了。(= I have diarrhea.)

I've really got a sore throat. Let's get together later.

嗓子好疼，过两天再聚吧。

I've got the flu. Keep away from me.

我患上流感了，不要靠近我。

Don't touch me. I've got a really stiff neck.

不要碰我，我感到脖子好僵硬。

对话：

A: Where does it hurt?

哪里不舒服?

B: I've got a pain in my side since the last weekend.

从上周末开始侧腰部位疼。