At least one mother contacted me to do her son's high school geometry homework.
竟然还有位母亲联系我，让我帮她上高中的儿子做几何作业。
Does geometry bring back stressful high school math memories?
是否几何带回压力高中数学的记忆？
Made with high quality high speed steel. Adopting multiple-ply geometry, which guarantee smooth cutting.
选用优质高速钢，多层切削几何，保证稳定的钻孔性能。
Made with high quality high speed steel. Adopting multiple-ply geometry, which guarantee smooth cutting.
选用优质高速钢，多层切削几何，保证稳定的钻孔性能。
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