She shivered involuntarily as he approached her.

他离越来越近，不由自主地颤抖起来。

I found myself shaking uncontrollably with cold.

我发现自不由自主地哆嗦。

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，他好奇心占了上风，他不由自主地打开盒子看了眼。

Uncontrollable laughter seized us.

我们不由自主地大笑起来。

He gave an involuntary smile.

他不由自主地笑了。

Her eyes strayed involuntarily.

目光不由自主地移开了。

Meg gave an involuntary exclamation.

梅格不由自主地叫了起来。

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，以此来显示自长不错，觉自很了不起样子，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。