万·大侠只是开个玩笑。关健是你没说明一颗星是多少针。并要假设你说的总针数是那块黑的面积而不是毯子的总面积。

来源: wxcfan123 于 2022-02-11 10:47:37 [旧帖] [给我悄悄话] 本文已被阅读：次

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