" To keep an eye on something" means to watch something.

“to keep an eye on something”意思是看东西。

Kathy asks, " Anyone else I should be keeping an eye on? " To " keep an eye on something" means to pay attention to something, to watch something carefully.

凯西问道：“还有其他我应该留意的人吗？ ” “keep a eyes on thing” 的意思是注意某事、仔细观察某事。