1. 实行；执行；贯彻
    If you pursue an activity, interest, or plan, you carry it out or follow it.

    e.g. It became harder for women married to diplomats to pursue their own interests...
           与外交官结婚的女性要追求自己的爱好就变得更加困难了。
    e.g. He said Japan would continue to pursue the policies laid down at the London summit...
           他说日本将继续贯彻伦敦峰会所制定的政策。

2. 寻求；追求
    If you pursue a particular aim or result, you make efforts to achieve it, often over a long period of time.

    e.g. The implication seems to be that it is impossible to pursue economic reform and democracy simultaneously...
           言外之意似乎是经济改革和民主化进程是不可能同时进行的。
    e.g. Mr. Menendez has aggressively pursued new business.
           梅嫩德斯先生积极开拓新业务。

3. 追查；追问；追究
    If you pursue a particular topic, you try to find out more about it by asking questions.

    e.g. If your original request is denied, don't be afraid to pursue the matter.
           如果你最初的请求遭到拒绝，不要害怕，要继续追问下去。

4. 追赶；追逐；追捕
    If you pursue a person, vehicle, or animal, you follow them, usually in order to catch them.

    e.g. She pursued the man who had stolen a woman's bag.
           她追赶那个偷了一个妇女提包的男人。