1.guess偏重“猜對,猜中”
guess a riddle猜中謎語；
2.guess at“推測”
guess at a riddle猜謎,
也可以跟賓語從句:
I can't even guess at what you mean.
我猜不著你的意思；
3.guess經(jīng)常用于口語中的“以為,相信”
I guess it's going to rain.
我想天快下雨了；
My guess is that...我認(rèn)為...；
4.think比較正式,語氣更強,更重在表達心里的意愿,
“以為,猜想”
I think him honest.我認(rèn)為他是老實的；
I thought to find you in the library.
我原來猜想會在圖書館里找到你.