Chen used to fold paper himself until he met Li Changnan, an eighth grader in his school who also loved folding paper.

陈曾经自己折纸，直到遇到了李昌南。李昌南是他同校的八年级学生，也喜欢折纸。

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For Chen and Li, who were studying fluid mechanics at the time, this was considered to be an excellent idea.

对于当时正在学习流体力学的陈和李来说，这是一个非常好的想法。

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Chen had to be a mason in a construction site while Wang Li bought an old knitting machine and set a stand before her gate. She was very skillful in knitting.

陈勇军只好到一个建筑工地上做泥瓦匠，王莉低价从厂里买来了一台旧针织机，在家里门口摆摊做起了简单的针线活生意。

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