She shivered involuntarily as he approached her.

离她越越近，她不由自主地颤抖。

I found myself shaking uncontrollably with cold.

我发现自己冷得不由自主地哆嗦。

Oliver smiled in spite of himself.

奥利弗不由自主地笑了笑。

This music sets your feet tapping.

这音乐能使你双脚不由自主地跟着打拍子。

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，不由自主地打开盒子看了一眼。

Uncontrollable laughter seized us.

我们不由自主地大笑。

He gave an involuntary smile.

不由自主地笑了一下。

Her eyes strayed involuntarily.

她目光不由自主地移开了。

Meg gave an involuntary exclamation.

梅格不由自主地叫了。

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.

如上大学时候有女孩说我总是喜欢眨眼睛，以此显示自己长得不错，觉得自己很了不样子，其实很浅薄。其实只是因为我戴着隐形眼镜，眼睛干，不由自主就眨眼睛了。