would this work-- follow up question

來源: 2010-05-09 11:00:48 [舊帖] [給我悄悄話] 本文已被閱讀:

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?

鴨子遊到湖心,然後開始向狐狸運動的切線的垂直方向遊