I can't guess at your name.
我可猜不出你叫什么名字。
Let us guess at the height of the building.
让我们推测一下这座楼房的高度。
Can you guess at the price?
你能猜出这个价格吗?
Ordinary people can only guess at the causes of the sharp rise in the cost of living.
普通百姓对生活费用急剧上涨的原因只能猜测。
guess at wh-clauseJust guess at what he means.
猜猜他是什么意思。
I can't even guess at what you mean.
我甚至连你是什么意思都猜不出。