It is quite clear that we were firing in self defence.

非常清楚，我们当时是自卫还击。

《柯林斯英汉双解大词典》

Tai Chi is an ancient form of self-defence.

太极拳是一种古老的自卫手段。

《柯林斯英汉双解大词典》

He claims he acted in self-defence.

他声称自己是出于自卫。

《牛津词典》

But Mr Dupree has said it was an accident and he acted in self defence.

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In English law there is currently only one full defence to murder - self defence.

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Haylock, who said he acted in self defence, was convicted of manslaughter at Winchester Crown Court on 16 March.

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