sentry
n
soldier posted outside a building, etc in order to watch or guard it 岗哨; 哨兵
People approaching the gate were challenged by the sentry. 向大门走去的人受到了哨兵的查问.
[attrib 作定语]
sentry duty 哨兵的值勤.
🔁 扩展释义
*['sentri]n. 哨兵, 看守vt. 设岗哨vi. 站岗, 放哨相关词组: be on sentry come off sentry stand sentry