外星人的英文：
space alien
extra-terrestrial

saucerman;Man from outer space;extraterrestrial(ET);spaceman
外星人

Creatures from outer space
外星人

While the girl was shopping, the alien got out.
当小女孩正在买东西时，外星人出去了。

This extraterrestrial gave a message to Rael.
这位外星人带给雷尔一道讯息。

I would trip out if aliens landed on earth.
如果外星人登陆地球我会开心死的。

No scientists have made a convincing case that the earth will be really attacked by beings from other planets.
还没有科学家证实地球真的会受到外星人的攻击。

She said with a straight face she saw green spacemen in the back yard.
她面无表情地说她在后院看到绿色外星人。

He had come in from the cold afternoon to hear the news channels announcing Earth’s first contact with alien life forms.
在一个寒冷的下午，他从外面回来听新闻广播报导地球第一次与外星人的会晤。

Whether there exist aliens in the universe has always been a question human try to answer.
宇宙中是否存在外星人已经成为了人类长期以来试图回答的一个问题。

On her way to her grandmother’s she meets an alien who takes her in his spaceship.
在去奶奶家的路上，她遇到了一个外星人把她带到飞船上飞走了。

sleeper spacing
轨枕间距

There is no existent in the space.
在那个空间已经没有东西存在了。

The space congregation is called information space.
这个空间集合称之为信息空间。

maniacal alienation
躁狂性精神错乱

Nobody was almighty, neither was an alien.
没人是全能的， 一个外侨也不例外。

Are orange trees alien to China.？
橘子树是从外国传入中国的吗？

Is there an extra charge?
有额外的费用吗？

extra interest or excitement
额外的趣味或刺激性的事物

Can I have extra ketchup?
我可以多要一些番茄酱吗？