She shivered involuntarily as he approached her.

离她越来越近，她自颤抖起来。

I found myself shaking uncontrollably with cold.

我发现自己冷得自哆嗦。

Oliver smiled in spite of himself.

奥利弗自笑了笑。

This music sets your feet tapping.

这音乐能使你双脚自着打拍子。

Eventually, his curiosity got the better of him and he had to take a look in the box.

最后，好奇心占了上风，自打开盒子看了一眼。

Uncontrollable laughter seized us.

我们自大笑起来。

He gave an involuntary smile.

自笑了一下。

Her eyes strayed involuntarily.

她目光自移开了。

Meg gave an involuntary exclamation.

梅格自叫了起来。

For example, once a girl found I like nictation, she said because I through that way to attractive others eyesight and show my beauty, actually my behaviour is empty-headed.

比如上大学时候有女孩说我总是喜欢眨眼睛，以此来显示自己长得错，觉得自己很了起样子，其实很浅薄。其实只是因为我戴着隐形眼镜，眼睛干，自就眨眼睛了。