文字遊戲好好玩吧？要不要再玩一個？

來源: 於 2014-10-30 13:37:23 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Curl up your thumb and your index finger of one hand to make a circle about 2 inches in diameter. Now can you poke your head through this circle?