n.[C]

1. 挖在山坡（或地下）的洞；防空洞；掩蔽壕
2. 【棒】（赛场的）选手休息处
3. 独木舟

n.

1. a trench that is roofed over as a shelter for troops.
   ▸an underground bomb shelter.
   ▸a low shelter at the side of a sports field for a team's coaches and substitutes.
2. (also dugout canoe) a canoe made from a hollowed tree trunk.