名词
中文翻译：自我防卫
同义词：
['self-protection', 'self-preservation例句：1. She decided to take self-defense classes to improve her safety skills.（她决定参加自卫课程来提高她的安全技能。）2. The police officer gave a quick self-defense demonstration to the public.（警察官员向公众做了一次快速的自卫演示。）']
例句：
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1. She decided to take self-defense classes to improve her safety skills.
她决定参加自卫课程来提高她的安全技能。
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2. The police officer gave a quick self-defense demonstration to the public.
警察官员向公众做了一次快速的自卫演示。
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3.In case of an attack, it's important to know how to use self-defense techniques effectively.
在遭受攻击时，了解如何有效地使用自卫技巧是很重要的。