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system of social security
system of social security
英
[system of social security]
美
[system of social security]
中文释义
社会保障制度
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单词结构:
system of social security
字母数:25
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🎯 重点记忆:
单词拼写:system of social security
核心含义:社会保障制度
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更新时间:2026-01-29 14:13:30