城市里的女清洁工通常按小时获得报酬。

Cleaning women in big cities usually get paid by the hour.

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去年夏天，余永定先生的妻子分出一些时间来帮一位女清洁工的女儿复习功课。

Last year, Yu's wife spent part of the summer tutoring the daughter of the woman who cleans their building.

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今天，一则新闻说一名女清洁工背大学生去上课，这一事件引起了关注和网上的激烈讨论。

Today, a news that a female cleaner carried college students to go to class causes concern and hot discussions on the Internet.

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