It's difficult even to guess at the figures. 即便是数字也很难猜测。

He guessed her age as 14 or 15. 他猜她的年龄是14岁或15岁。

Would anyone like to guess what this object is? 有没有人想猜猜这是什么东西？

She guessed that it was about midday from the position of the sun. 她根据太阳的位置猜测大概是中午了。

Scientists are really still guessing as to the true cause of ice ages. 科学家们确实还在猜测冰川期的确切成因。

Whoever guesses correctly will win two tickets to the show. 不管谁猜对都会赢得两张演出入场券。

Take a guess at what's behind this screen. 猜猜看，这个屏幕后面有什么。

a guess as to the number of people who might come 关于有多少人会来的推测

At a rough guess, I'd say there were twenty people in the room. 粗略估计，房间里有二十个人。

OK, I'll make a wild guess, but I really don't know. 好，那我就大胆地推测一下，但我真的不知道。

The researchers made several inspired guesses about how the brain works. 研究者们就大脑如何工作的问题作了一些很有见地的推测。

I could probably make an educated guess. 我可以作一个有一定根据的猜测。

We can only hazard a guess at what happened. 我们只能冒险猜测要下发生了什么。