外面太冷，容易着凉。

Wàimiàn tài lěng, róngyì zháo liáng.

It's easy to catch a cold when it's cold outside.

别吹到风，容易着凉的。

Bié chuī dào fēng, róngyì zháo liáng de.

Don't expose yourself to the wind, it's easy to catch a cold.

我昨天在雨中着凉了。

Wǒ zuótiān zài yǔ zhōng zháo liáng le.

I caught a cold in the rain yesterday.