释义 |
stand sentryKeep guard or control access to a place.Because of security woes, classes began two weeks late this year, with armed guards standing sentry at school gates....- The number of security guards patrolling its eastern borders exceeds those standing sentry on the closely watched border between the US and Mexico.
- Relaxed Chinese guards armed with automatic rifles were standing sentry at the 217-meter-long bridge.
See parent entry: sentry |