But being so tired, his younger brother fell asleep, leaving him on the toilet for two hours till the teacher on duty discovered him.

但是，因为太累，他的弟弟一下睡着了，把他一个人留在厕所呆了两个小时，直到值班老师发现他。

youdao

Donghui Saturday school uniform rest, need to consult students can also to the school visit! The school has a teacher on duty is responsible for the reception!

东晖学校周六统一休息，需要咨询的同学可照常到学校咨询参观！学校有值班老师负责接待！

youdao

My middle school English teacher in order to improve our spoken English, she asked everyone on duty to do a presentation in front of the class.

我初中英语老师为了提高我们的英语口语，她要求每个值日生都要在全班面前做演讲。

youdao

"The lesson I've learned is to keep my phone off when the 1950's gym teacher is on duty, " he wrote.

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