The two salesmen caught on, and they began to laugh.

The new song caught on really quickly.

这首新歌真的流行得很快.

I told him how and he caught on at once.

我一说他就明白了.

The sunrise was a splendid spectacle.

日出是个壮观的景象.

That tree is the glory of the garden.

那棵树是这个花园里最壮观的.

In addition the debris away, the astronauts and the spacecraft's relative position is also very important.

除了躲开碎片之外, 航天员和太空船的相对位置也很重要.

Three astronauts return to Earth safe and sound.

三名航天员安然无恙地返回地球.

Five astronauts are carried in the spaceship.

搭载这架航天飞机的有五名航天员.

The returning astronauts splashed down safely.

返回的航天员们安全溅落.

She taught for many years before she became an astronaut.

在她成为航天员以前她已经教书很多年了.

Objective To analyze and study astronaut and his personal equipment safety.

目的分析研究航天中航天员及其个人装备的安全性.

Li Yongzhi: Professor, Astronaut Research and Training Center of China, Beijing 100094.

作者简介: 李勇枝:研究员, 中国航天员科研训练中心, 北京100094.

The boys made believe ( that ) they were astronauts.

男孩儿们假扮成航天员.

I know the polar bear 3 be from the Arctic 4, too.

我还知道北极熊来自北极.

In spite of vigilance a polar Bear escaped from the zoo.

尽管警戒很严,北极熊还是逃出了动物园.

A polar bear has a preference for cold weather.

北极熊喜欢寒冷的天气.

There was a great difference in adaptability to low light environment among combinations.

杂交水稻适应弱光环境的能力是由自身因素决定的,组合之间存在很大差异.

But they are on the first floor.

但是在一楼.

The Clarks live on the second floor of their house and lease the first floor.

克拉克一家住在他们房子的二楼,而把一楼租出去了.

The telephone is in the little study on the ground floor.

电话在一楼的小书房内.

There is a budget department on the first floor.

一楼有廉价商品部.