keep tap on

1 注意

careful cautious attentive watchful observing advertent up note care application eye notice attention reference regard guard ear alert caution remark lookout heed cognizance tendance advertence look mark attend listen bend behold advert hearken point mind draw arrest attract dig beware twig list pay attention to take notice take notice of have regard to have set eyes on take it into head keep eyes on be with it

2 监视

surveillance oversight cognizance stakeout monitor guard overlook keep watch