Any region in space outside the Earth's atmosphere.

Studies processes in earth's atmosphere that cause weather conditions.

研究地球空气中影响天气的因素。

As a result, the study estimates that somewhere between 2% and 16% of the oxidizing, or cleaning that happens naturally in the Earth's atmosphere, is done by lightning.

因此，研究估计，地球大气中自然发生的氧化或清洁有2%到16%是由闪电完成的。

The net catches the junk and then pulls it into the earth's atmosphere to burn up.

这个网捕捉到垃圾,然后把它拉到地球大气层中燃烧。

Each tool must be built to fall safely into the earth's atmosphere after that time.

每一个工具都必须在那之后安全地落入地球大气层。

The project would give scientists new insights into what is happening to the earth's atmosphere

该项目将使科学家对地球大气层的状况有更新的深入了解。

The force of friction slows the spacecraft down as it re-enters the earth's atmosphere.

航天飞机重返地球大气层时因有摩擦力而减慢速度。

The child had laid her head on a stone and fallen asleep.

孩子早已把头枕在一块石头上睡着了。

But this time, both he and his girlfriend had fallen asleep,

但这一次，他和女朋友都睡着了，

MEG has fallen asleep towards the end of the flight.

飞行快结束时，梅格已经睡着了。

It's impossible. he's fallen asleep so quickly.

不会吧。这么快就睡着了。

I have already fallen asleep when you came.

你来的时候我已经睡了。

Mark: Oh, yeah. I must have fallen asleep.

马克：哦，好像是。那我刚一定是睡着了。

I'm sorry. I must have fallen asleep.

对不起我一定是不小心睡着了

One of the actors appeared to have actually fallen asleep...

有个演员看上去像睡着了一样…

The boy hasn't fallen asleep since his father came back.

这个男孩从他父亲回来就没有睡着。

First, make sure the lazy cat has fallen asleep.

首先，确信那只懒猫已经睡熟。

The children had one by one fallen asleep.

孩子们一个接着一个地睡着了。

Last year the Foundation reported that nearly 60% of 7-to 12-year-olds said they felt tired during the day, and 15% said they had fallen asleep at school ．

去年,该基金会报告说,近60%的7-12岁的孩子说他们白天感到疲倦,15%的人说他们在学校睡着了。

Michelle had fallen asleep with her head against his shoulder

米歇尔睡着了，头靠在他的肩上。

He had fallen asleep on the sofa.

他在沙发上睡着了。