名词
中文翻译：自我防御
同义词：
['self-protection', 'self-preservation']
例句：
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1. Shedecided to take self-defense classes to improve her skills.
她决定参加自卫课程来提高自己的技能。
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2. The community center offers free self-defense classes for the elderly.
社区中心为老年人提供免费的自卫课程。
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3. During a home invasion, she used her self-defense skills to protect herself and her family.
在一次家庭入侵事件中，她利用自己的自卫技能保护自己和家人。