今天我在教学楼里上厕所，站起来的时候钥匙和身份证从裤袋里滑了出来掉进水里。

Today, I was using the bathroom in one of my academic buildings. I stood up and pulled up my pants, and out of my back pocket fell my keys and ID card.

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教学楼里也全是雨水，同学们坐在教室里，必须把脚放到椅子上听课。

The rain also ran into the classroom. Students had to place their feet high on the chair while having class.

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