It was obvious Hill had come over to keep tabs on Johnson and make sure he didn't do anything drastic.

显然，希尔是来严密监视约翰逊的，以确保他不做什么过激的事。

《柯林斯英汉双解大词典》

It's not always possible to keep tabs on everyone's movements.

监视每个人的行动并不总是能办得到的。

《牛津词典》

Your friends can also keep tabs on you.

您的朋友也可以了解您的动向。

youdao