Frost are ice crystals on a frozen surface.

霜就是冻结的冰晶。

You're used to seeing a mushroom above ground.

已经习惯看到的蘑菇了。

This can be done manually by workers on the ground.

这可以由的工人手动完成。

These networks are based from the ground though.

但是这些网络是放置于的。

Fog is like a cloud close to the ground.

雾气就像笼罩的云。

Don't worry. Look at the stones on the ground.

“别担心，看看的石头。

A person on the ground controls the drone.

的一个人负责控制无人机。

It's not like anything we experience here on the ground.

这和我们的体验完全不同。

The pilot and 4 people on the ground were killed.

飞行员和的4人遇难。

The fulcrum is your foot or knee in a ground.

支点是的脚或膝盖。

Now, the brazil nut tree needs the agouti, way down there, to disperse the seeds.

巴西胡桃树需要的刺鼠散播种子。

Temperatures here are much cooler than down on the desert floor.

这里的气温比沙漠的低得多。

Some facilities on the ground do not.

一些设备是的医院所不具备的。

They lived in tree houses to escape from the fierce creatures who lived below.

他们住树屋里躲避的凶猛怪兽。

The birds seem to be having fun just like their audience on the ground.

鸟儿们似乎和的观众一样玩得很开心。

But scratching a living on the forest floor is hardly any easier.

可单单靠的猎物谋生也不会容易到哪去。

Passengers aboard the plane and people on the ground heard a loud boom.

飞机的乘客和的人们听到一声巨响。

Indeed a fog is simply a cloud resting on the ground.

实际, 雾气就是落的云朵。

Then they will wander into traps placed on the ground.

然后，它们会进入放置的陷阱中。

That makes the vegetation on the ground right for spreading potential fires.

这使得的植被成为了潜的火灾传播源。