我对摄影有业余的兴趣。

Wǒ duì shèyǐng yǒu yèyú de xìngqù.

I have a hobby in photography.

他是一位业余画家，但作品很出色。

Tā shì yī wèi yèyú huàjiā, dàn zuòpǐn hěn chūsè.

He is an amateur painter, but his works are excellent.

我喜欢业余时间读书。

Wǒ xǐhuān yèyú shíjiān dúshū.

I enjoy reading in my spare time.