vi.

1. （公牛等）吼叫
2. （人，海等）怒吼；（雷，炮等）轰鸣
   He bellowed at his servant.

   他对佣人大声吼叫。

vt.

1. 大声发出；大声喝道[（+out/forth）]
   Staggering to his feet, the drunkard bellowed out a laugh.

   醉汉摇摇晃晃地站起来时发出一声大笑。

n.[C]

1. （公牛等的）吼叫声
2. （人的）吼声；（雷，炮等的）轰鸣声

v.

n.