If your goal is to have standardized approaches to learning, where everybody learns the same thing at the same time in the same way, then learning by doing doesn't really fit that mold anymore.

如果你的目标是要有标准化的学习方法，让每个人在同一时间以同样的方式学习同样的东西，那么通过实践来学习其实已经不符合这个模式了。

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If the prince could learn to love another and earn her love in return by the time the last petal fell, then the spell would be broken.

如果王子能在最后一片花瓣掉落前学会爱别人，并得到她的爱，那么所有的咒语将会被打破。

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In an experiment, a researcher will place nuts into a can one at a time and then remove them one by one.

在一项实验中，研究人员每次把坚果放入一个罐子，然后再一个接一个地把它们取出来。

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This time, he stayed until the end of April, by then he had so many furs that he had to leave his traps behind.

VOA: special.2010.06.26

Then there are certain holy days: and they are separated and demarcated from common time by special rules that mark them as different.

然后是一些神圣日：,和普通的时间,被一些特殊的判定它们不同的规则所区分开。

耶鲁公开课 - 旧约导论课程节选

Then,the first time you get a list by any Christian that we still possess,that is extant, that survives,that has the twenty-seven books of the New Testament that is in our bible,is in the year 367.

由基督教徒列出的,现在仍然存在的，并且包括新约里27本书的,最早书目出现于主后367年。

耶鲁公开课 - 新约课程节选

If every organisation uses the same prediction technique then by the time a topic is trending then there will be some thousands of articles optimised for that subject and no one producer is going to gain very much from having written one.

FORBES: Twitter Trending Prediction Algorithm: Possibly Of Most Use To Journalists

You'd be fostered out into the country for a while, but then by the time it was your fifth or sixth birthday, you were brought up in this institution.

BBC: Last Updated: Thursday October 08 2009 15:19 GMT

"If we can make it a little bit more difficult for teenagers to start smoking then hopefully by the time they get to be a bit older they will be more aware that they are not immune to the effects of smoking, " said Dr Sarah Jarvis from the Royal College of GPs.

BBC: NEWS | Health | Smoking age could increase to 18