a group of young birds all born at the same time

The blackbird flew back and forth to its brood. 乌鸫飞来飞去的，忙于哺育幼雏。

a person's young children

Ann was at the party with her brood. 安和她的孩子们参加了聚会。

to think for a long time about things that make you sad, worried, or angry

I wish she wouldn't sit brooding in her room all day. 我希望她不要整天呆在房间里忧心忡忡的。

Compare: sulk verb