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.

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.

Class is taught in English. All texts are in English.

本课程以英语授课, 所涉教材亦全为英文.

Even what you learn during the four years of university will be something quite superficial too.

就是大学四年,所授课业也还是相当粗浅的学识.

She gives private lessons to supplement her income.

她给私人授课以贴补收入.