英文解释:
- Keep close watch on
- n. lose/keep trace/track (of)
- n. on guard/the watch
- n. direct one's attention to
- n. keep one's eyes peeled
- n. keep one's eyes skinned
- n. keep both eyes open
- n. keep both eyes peeled
- n. keep both eyes skinned
- n. keep one's weather eye open (=keep a weather eye on)
- n. keep one's weather eye open (=keep a weather eye out for)
- n. have one's weather eye open (=keep a weather eye on)
- n. have one's weather eye open (=keep a weather eye out for)
- n. keep [take] a sharp [keen] lookout for
- n. keep (a)close [careful] watch on
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