在业余时间我喜欢在乐队弹吉他。

I like playing the guitar in a band in my free time.

youdao

在业余时间我喜欢浇花。

In my spare time, I like watering flowers.

youdao

我干过。在业余时间我经常翻译一些东西，他们中的一些已经被发表。

Yes, I have. In my spare time I usually do some translations and some of them have been published.

youdao

and I come here on my spare time and do volunteer coaching for little league team.

我只是在业余时间里来这边，为一些小型联赛队伍义务执教。

布朗克斯的足球教练 - SpeakingMax英语口语达人