Because the tunnel economy is clandestine, it's difficult to estimate just how much money is being made.

VOA: standard.2010.06.17

So, if you want to estimate how many grammatical sentences under twenty words in English, the answer is, "A lot."

如果你想估计一下,用二十个英文单词,可以组成多少个符合语法的句子,答案会是,"很多"

耶鲁公开课 - 心理学导论课程节选

How long do you have to be around a person to see him, to estimate how good a lecturer that person is?

你要看一个人多久，才能评估出他讲课有多好？

耶鲁公开课 - 心理学导论课程节选

"They are so complicated that if you tried to estimate how many ways you can make a snowflake, you get a huge number not just billions or trillions, but bigger than the number of atoms in the universe.

VOA: standard.2009.12.19

How hard did you find it to estimate how much you were eating of something?

你觉得估算自己,吃了多少量有多困难

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So Rituparna tries to prove to him his abilities and he says, see that tree there, I can estimate how many leaves there are on that tree by counting leaves on one branch.

所以睿都巴若那就试图证明自己的能力,他说,看那边的树,我只需数一根枝杈上的叶子,就能估算出树上叶子的总数

耶鲁公开课 - 金融市场课程节选

But what this study found was people were asked to estimate how much food they were consuming and how many calories they were burning through physical activity.

但是这个研究发现,当人们被要求估测,他们吃了多少食物,通过体育运动消耗多少卡路里时

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But how carefully you estimate will determine in part how good your ultimate records are so please try to be as careful as you can, and then pick the closest option if you can't find the exact food that you're eating at that time.

你估计的仔细程度,在某种程度上,也会决定最终结果的准确性,所以请尽可能谨慎,如果找不到完全对应的食物,请选择和你当时所吃食物最接近的选项

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So we actually had the foods on a plate or in a bowl, or in a glass, and we had--we asked them to estimate how much of the food there was, how many ounces they were seeing, and then how many calories there were.

食物被摆在盘子,碗,玻璃杯中,然后让他们估计食物总量,有多少盎司,多少卡路里

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If you go to the dining hall you know, the portions-- one person serves themselves this much of a food and another serves themselves another, and then when you go to a restaurant there are variations on how much you get served of things, and so it's very hard to estimate portions for people.

如果你去食堂,摄入量是指,一个人吃了自己的那部分食物,或其他人吃的他们的那一部分,当你去餐厅,每次吃多少是变化的,因此估算每个人的摄入量是很难的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选