男孩子們保持安靜。

The boys kept quiet.

Source: Tatoeba

Sentence Composition

1 男孩子 nánháizi boy
2 們 men plural marker for pronouns, and nouns referring to individuals
3 保持 bǎochí
  1. to keep
  2. to maintain
  3. to hold
  4. to preserve
4 安靜 ānjìng
  1. quiet
  2. peaceful
  3. calm