The development of this one system and grow experienced meandering exploration course.

这一体系的发育与成长经历了曲折的探索过程。

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The course lay out for the cross-country track took a meandering path around the school, then out into the pastures around the school (with the permission of the farmers, of course).

越野跑的路线是一段围绕着学校弯弯曲曲的路，还要穿过附近的牧场(当然，事先已经取得了主人的许可)。

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