Now suppose you live in a certain part of a certain remote place

And part of what happens in a place like Princeton is that people get challenged.-Right.

而且，在普林斯顿这种地方，人们处处都会遇到挑战，-是的。

Working in west China or rural areas means lower return rate. Once these graduates want to return eastern part of China and find a place in labor market, they have to pay a lot for this kind of job transformation.

大学生去西部和农村就业意味着投资回报率低，成本回收困难，而且如果想返回东部和城市劳动力市场就业，必须支付巨额工作转换成本。

Try holding a wooden stick against part of a machine, and place your ear against the stick. The movement of the ball-bearings can be dearly heard.

试着用一根木棍抵住机器的某一部位，把耳朵贴着木棍，就能清晰地听到轴承的转动声。

In the reality of course, we have to calm and carefully observed, and then balance.

而在现实面前我们当然先要冷静下来仔细观察, 然后权衡轻重.

Through balance weight, the judge says finally:'sentence capital punishment, shoot instantly! Shoot instantly! "

经过权衡轻重, 法官最后说: “ 判处死刑, 立即枪毙! ”

She drew a row of trees receding into the distance to demonstrate the laws of perspective.

她画了一排由近而远高度递减的树以演示透视法的规律.

The basic rules of linear perspective were now accessible to any artist.

直线透视法的基本原理现在任何艺术家都可以采用.

Children often draw without perspective.

小孩子画画常常不管透视法.

Artists didn't understand perspective in those days.

在那个年代艺术家们不懂透视法。

A roof in a bustling city is always surrounded by other gray roofs.

闹市中的天台,四周的景观就是其他楼宇的天台.

This singular spectacle can only be seen in Jiuzhaigou -- a natural preserve.

这种独特的景观,只有在这个自然保护区才能见到.

Stars are a nocturnal sight.

星星是夜间的景观.

The front of the house looks to the sea. It gets a beautiful view.

这座房子面朝大海, 可以看到很美的景观.

Tom absorbed all the knowledge that his teachers could give him.

汤姆把他的教师所讲授的知识全都掌握了.

She gives instruction in mathematics.

她讲授数学.

Should the teacher present grammatical rules to students?

老师是否应该给学生讲授语法规则？

He has established his theory.

他确立了他的学说.

He gave a series of lectures on medieval art.

他做了中世纪艺术的一系列授课.

The teacher worked out a new way of teaching.

那个老师设计了一种新的授课方法.

Teaching includes lectures, laboratory sessions, and experimental analysis demonstration.

授课形式包括讲授 、 实验及示范教学.