小心不要着凉。

Take care not to catch a cold.

Source: Tatoeba

Sentence Composition

1 小心 xiǎoxīn
  1. to be careful
  2. to take care
2 不要 bùyào don't!; must not
3 着凉 zháoliáng
  1. to catch cold
  2. Taiwan pr. zhāoliáng