cling to

1. 紧握不放

The small child clung to its mother.

那小孩紧紧抓住母亲不放。

2. 忠实于

One should cling to one's friends.

对朋友应该忠实。

3. 坚持

After so many years, she was still clinging to the hope that he could return.

许多年过去了, 她仍抱着他会回来的希望。