keep up with

• • 跟上，不落在…后面：

    Hurry up, or you won't keep up with them.

    快点，否则你就赶不上他们了。

    Jane could't keep up with the rest of the class.

    简跟不上班里的其他同学。

  • 赶上(某思想、风尚等)：

    Young girls like to keep up with the latest fashions.

    年轻女孩喜欢赶最新潮流。

  • 保持联系，和…来往：

    She still kept up with her classmates after graduation.

    毕业后她仍然与她的同学保持联系。