on guard/the watch

基本解释值班警戒,看守/密切注视,守候

网络释义

1)on guard/the watch,值班警戒;看守/密切注视;守候2)watch,v.观看;注视;看守;警戒 n.注视;手表;守护3)watch,表;值班;看守4)on the watch for,密切注意;守候着;监视着;提防5)on one's guard; on the watch,警戒着;守望6)listening watch,守听值班