1. 活泼的；精力充沛的；生气勃勃的
    You can describe someone as lively when they behave in an enthusiastic and cheerful way.

    e.g. She had a sweet, lively personality...
           她的性格可爱活泼。
    e.g. Josephine was bright, lively and cheerful.
           约瑟芬聪明、活泼、开朗。

2. （事件、讨论等）热闹的，热烈的，激烈的
    A lively event or a lively discussion, for example, has lots of interesting and exciting things happening or being said in it.

lively

    e.g. It turned out to be a very interesting session with a lively debate...
           结果这成了一场非常有意思的、气氛热烈的辩论会。
    e.g. Their 4-1 win in Honduras was a particularly lively affair.
           他们在洪都拉斯以4比1获胜的那场比赛尤其激动人心。

3. 才思敏捷的；思维活跃的；兴趣广泛的
    Someone who has a lively mind is intelligent and interested in a lot of different things.

lively

    e.g. She was a very well educated girl with a lively mind, a girl with ambition.
           她是个受过良好教育、思维敏捷、抱负远大的女孩子。
    e.g. ...her very lively imagination.
           她那活跃奔放的想象力

4. （感觉或意识）炽热的，强烈的
    A lively feeling or awareness is a strong or enthusiastic one.

    e.g. The papers also show a lively interest in European developments.
           论文对欧洲的动向亦表现出浓厚的兴趣。