would this work-- follow up question

来源: novtim2 于 2010-05-09 11:00:48 [] [旧帖] [给我悄悄话] 阅读数 : (216 bytes)

looks like everybody knows the right answer: swim a smaller circle until it's 180 degree away from Fox, then swim ashore.

but could this work?

鸭子游到湖心，然后开始向狐狸运动的切线的垂直方向游
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