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1·With the encouragement and the money provided by the teachers, they had a paper folding class every Wednesday afternoon.

在老师的鼓励和资助下，他们每周三下午都要上一节折纸课。

2·Folding the money or giving dirty or wrinkled bills is in bad taste.

把钱折了或者用脏了或皱了的钱不好。