他整天闷闷不乐地想着那次失败。

He ___broods all day about that failure.

母鸡在窝里耐心地孵蛋。

The hen ___broods patiently over her eggs in the nest.

母鸡正照顾着一窝刚孵出来的小鸡。

The hen is taking care of a ___brood of newly hatched chicks.