hobby是可数名词，复数形式是 hobbies

hobby

美 /ˈhɑːbi/

英 /ˈhɒbi/

n.

嗜好；业余爱好

双语例句：

My mother's hobby is playing the piano.

我妈妈的业余爱好是弹钢琴。

This hobby is catching dragonflies.

这只小鹰正在捕捉蜻蜓。

After communication, I found that I had the same hobby as him.

经过交流，我发现我跟他竟然有相同的爱好。