We just want to get a rough idea so we can tell me they need to have another 20 or they need to have another 100.

我们只是想得出个大概的数目,这样我们就可以告诉他们,是还需要20本还是100本。

麻省理工公开课 - 固态化学导论课程节选

I need to know how long, so that I can let my roommates know.

我得知道大概有多久，这样我就可以告诉我的室友们了。

How long实战 - SpeakingMax英语口语达人

Lots and lots of loans, the securities that people bought at par that were worth about somewhere between zero and $.15 or $.20 and now trade there.

市场上充斥着越来越多的贷款，人们按照面值购买的债券,真正的价值只有大概,0到0。15或者0。20美元0,而它们就这样进行交易。

耶鲁公开课 - 金融市场课程节选