名词
中文翻译：Unknown
同义词：
['multi-level address', 'multi-tiered address', 'multi-layered address']
例句：
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1. The company uses a two-level address system to ensure privacy and security.
该公司使用双层地址系统来确保隐私和安全。
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2. The new address system is designed for two-level addresses, making it more user-friendly.
新的地址系统是为双层地址设计的，使其更用户友好。
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3. The government has implemented a two-level address system to improve public transportation.
政府实施了双层地址系统以改善公共交通。