"When you start moving towards an industrial revolution, it is economically efficient to have people living close together," says Macfarlane.

麦克法兰说：“当你开始迈向工业革命的时候，从经济学角度来说让人们住得很近是富有效率的。”

youdao

It's not unusual to feel lost when you first start college.

刚上大学时感到很迷惘不足为奇。

youdao

I want all of you to understand that when I start the machine, it will immediately travel in time and disappear from the present.

我想让你们所有人都明白，当我启动机器时，它会立即穿越时间，从现在消失。

youdao

"I would say that it is my crisis training in the airline industry that helped me know at that moment when you feel emotionally paralyzed what to do and how to start communicating that sad news."

VOA: standard.2010.02.25

When you go to a concert of classical music and the music is played and you start to talk what happens?

比如当你们去听古典音乐会,在演奏进行时,你们开始讲话,那会发生什么

耶鲁公开课 - 聆听音乐课程节选

I was going to say when you first start doing this, even people who have been doing it for a long time still go off on ten-minute daydreams before realizing that their minds were wondering.

我本想说第一次尝试时，但即便是修行多年的人,也会走神十分钟之久,方才意识到自己刚做了白日梦。

普林斯顿公开课 - 人性课程节选

And it told you when to start compiling your records or at least worrying about them.

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When you start to get tired -- and I know that you will -- when you start to think about taking a day off, I want you to remember that what we do for the next 21 days will absolutely make the difference between waking up the day after Election Day and wondering, could I have done more -- or feeling the promise of four more years.

WHITEHOUSE: The White House

When you start to go through those points is when we start to get integrated.

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