名词
中文翻译：Unknown
同义词：
['guard', 'safeguard', 'guard against', 'defend', 'secure']
例句：
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1. The government istaking measures to protect the environment.
政府正在采取措施保护环境。
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2. He has a strong sense of protection for his family.
他对家人有很强的保护意识。
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3. The company's policy on privacy protection is well-known.
该公司的隐私保护政策广为人知。