It must have taken me a half hour to sense that maybe some key to an answer could result from reversing the word "Thanksgiving" — at least that suggested a verbal direction, "giving thanks."

大概过了半个小时左右我才意识到，问题的关键也许在于把Thanksgiving这个字前后颠倒一下——那样一来至少文字好懂了：givingthanks。