be on the watch留心注意;留神着
take on the watch带上手表
on the watch for警戒;不断监视;不断监视看有没有
on the watch against不断监视以防备
Staying On The Watch唱片名
am on the watch for看守着
was on the watch for看守着
on the well made watch或是手边的运动
watch on the web果敢