Self-defence is the use of force to protect yourself against someone who is attacking you.
The women acted in self-defence after years of abuse.
这些妇女遭受了多年的虐待后终于起来自卫了。
Self-defence is the action of protecting yourself against something bad.
Tai Chi is an ancient form of self-defence.
太极拳是一种古老的自卫手段。