n.1.表[C]2.看守,监视;警戒,注意[S][U]The would-be murderer was kept under close watch.那个意欲行凶的人被置于严密监视下.3.守卫,看守,值班人[the S]He is on watch.他在值岗.4.(海员的)值班时间;值班的海员[C][...