be on sentry

be on sentry [bi: ɔn ˈsentri]  [bi ɑn ˈsɛntri] 

be on sentry 基本解释

be on sentry

站岗,看守

be on sentry 网络解释

1. 站岗, 看守:be on sb.'s back || 嘲笑某人, 打搅某人 | be on sentry || 站岗, 看守 | be on short commons || 吃不饱