在每一台机器，后轮驱动了电源下到地面。
In each machine, rear-wheel drive puts the power down to the ground.
伊沃克人打猎时要冒险下到地面，设置陷阱来捕捉各种猎物。
Ewoks venture to the forest floor to hunt, and set traps to catch various prey.
其实也不怎么大的，雨点，下到地面，一下子被滚烫的地面吸收。
In fact, not how big rain, down to the ground, all of a sudden the ground was hot absorption.
“我不认为你一下到地面，就突然决定说直立走路是个非常好的主意，”他说。
"I don't think you come down to the ground and decide it would be a really good idea to stand upright and move around," he says.
换句话说，我们的祖先很久以前是活动在树上的，后来下到地面，开始直立行走。
In other words, a long-ago ancestor species that spent its time in the trees moved to the ground and began walking upright.
你的身体几乎立即锁定，你去下到地面与微不足道的损害，你不再是任何人构成威胁。
Your body locks up almost instantly, you go down to the ground with inappreciable damage, and you are no longer a threat to anyone.
也许这就是为什么我们已经从树干爬下到地面上这么长时间了，还是会对树木产生敬畏之情。
Perhaps that is why long after we have climbed down their trunks we still gaze at trees in awe.
纽约石溪大学的解剖学家苏珊-拉尔森说，大约200万年前，即使早期人类都离开了树木，下到地面，肩膀的结构问题，都还没有得到完全的解决。
Anatomist Susan Larson of Stony Brook University in New York says even after early humans left the trees altogether — a little over 2 million years ago — the shoulder wasn't settled.
尽管阿迪一生中大部分时间也许是在树上渡过的，但当她下到森林地面上时，她的骨盆是适合直立行走的。
Though Ardi would have spent much of her time in the trees, her pelvis was adapted to walking upright when she came down to the forest floor.
所有矿工和下到矿井中监察救援行动的救援人员全部返回地面，可能还需要24个小时。
It is likely to take almost another 24 hours before all the miners and the rescue workers, who descended into the mine to supervise the operation there, are back on the surface.
相反，他们从类人猿(apes)进化而来，起先他们在树上度过大部分时间，后来直立着下到了地面。
Instead they evolved from other apes who spent most of their time in trees and descended to the ground upright.
并且随着暖雨融化冰雪或者下到水量已饱和的地面，大洪水泛滥的危险将急剧增长。
And with warm rains melting snow or drenching already saturated ground, the risk of extreme floods will rise dramatically.
并且随着暖雨融化冰雪或者下到水量已饱和的地面，大洪水泛滥的危险将急剧增长。
And with warm rains melting snow or drenching already saturated ground, the risk of extreme floods will rise dramatically.
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