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正式或官方的注册，尤指是为了投票或上课。
To enroll officially or formally, especially in order to vote or attend classes.
youdao
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在官方权威机构正式注册。
Are officially registered by the competent authority.
youdao
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在官方权威机构正式注册。
Are officially registered by the competent authority.
youdao