lookout/ 'lukaut /

1.noun [c] 
(person) 看守

2.noun
(place) 瞭望台

to be on the lookout for sth
留心某事
to keep a lookout (for sb/sth)
密切注视(某人/某事)
3.cpd [+post] [ tower] [ point] 
瞭望

֧ɨ