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保持教室清洁是我们的责任。
Keeping the classroom clean is our duty.
youdao
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我们的教室必须保持干净清洁。
Our classroom should be kept clean and tidy.
youdao
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让我们保持教室的清洁。
Let's keep our classroom clean.
youdao
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我们的老师要求我们保持教室的清洁和安静。
Our teacher asks us to keep the classroom clean and tidy.
youdao
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我们的老师要求我们保持教室的清洁和安静。
Our teacher asks us to keep the classroom clean and tidy.
youdao