I like to read books in my freetime.

我喜欢在我的空闲时间读书。

In my freetime, I like to learn new languages.

在我的空闲时间，我喜欢学习新语言。

She spends her freetime painting beautiful landscapes.

她在空闲时间画美丽的风景画。

They often play video games together in their freetime.

他们经常在空闲时间一起玩电子游戏。

During his freetime, he enjoys hiking in the mountains.

在空闲时间，他喜欢在山里徒步。