Frost are ice crystals on a frozen surface.

霜就是冻结地面冰晶。

Now, smoke still rose up from the warm ground over the desolate hills.

而现，发热地面仍然升腾着烟雾，弥漫荒凉山丘。

The leaf-strewn ground was now swarming with spiders.

铺满叶地面现密密麻麻都是蜘蛛。

Now, everybody at the time was interested in this incredible diversity aboveground.

当时，每个人都对地面种令人惊诧多样性而感兴趣。

These networks are based from the ground though.

但是些网络是放置地面。

Then autumn leaves turn brown, fall into piles upon the ground.

然后秋天树叶变成棕色，地面树桩。

Harry noticed that he seemed much less coordinated on the ground.

哈利注意到，他一旦到地面，他动作看去就不那么协调。

You're used to seeing a mushroom above ground.

你已经习惯看到地面蘑菇。

You're used to seeing a mushroom above ground, mycelium is like the roots beneath it.

你可能看惯地面蘑菇，但菌丝体其实是它下面根。

This can be done manually by workers on the ground.

可以由地面工人手动完成。

Here's Roger Penrose, now Sir Roger Penrose, standing on a field of Penrose tiles.

如图是罗杰·彭罗斯，现该称他为罗杰·彭罗斯爵士，站由彭罗斯瓷砖铺成地面。

She sits on the bare ground and looks up at the towering vortex around her.

她坐裸露地面，向看着她高耸旋涡围绕着她。

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

使得地面植被成为潜火灾传播源。

They didn't need any other landmarks on the ground.

他们不需要地面任何其他地标。

But what about the conditions there? Even the dirt on the ground could kill us.

但那里环境条件呢？甚至地面尘土都可能杀死我们。

Suddenly, the dogs be-came silent and ran around with their noses to the ground.

突然，狗们静下来，边跑边用鼻子周围地面嗅。

A person on the ground controls the drone.

地面一个人负责控制无人机。

When we drive a car on dry ground, it can create a dust cloud.

当我们干燥地面驾驶汽车时，会产生尘埃云。

Back on Earth, Margaret Hamilton held her breath.

地面玛格丽特·汉密尔顿摒住呼吸。

Fog is like a cloud close to the ground.

雾气就像笼罩地面云。