从森林到山坡上没有树木的苔原的过渡通常会十分突然和明显。
The transition from forest to treeless tundra on a mountain slope is often a dramatic one.
在森林中，视觉信号只能在没有树木遮挡的地方在短距离内被看到。
In forests, visual signals can be seen only at short distances, where they are not obstructed by trees.
人口不断增加所带来的压力促使人们大量砍伐木本植物，因此许多城市和城镇周围的大片地区已经完全没有树木和灌木了。
The increased pressures of expanding populations have led to the removal of woody plants, so that many cities and towns are surrounded by large areas completely lacking in trees and shrubs.
没有树木，许多动物不能在地球上生活，人类在地球上生活也不容易。
Without trees, many animals can not live on the earth. It's not easy for man to live on the earth, either.
如果没有树木吸收地面中的水分，土壤一直会比周边的树林更加湿润。
Without a tree to soak up moisture from the ground, the soil remains wetter than in the surrounding forest.
加拿大的北极是一个广阔的、没有树木的极地沙漠，一年中大部分时间都被雪覆盖着。
The Canadian Arctic is a vast, treeless polar desert that's covered with snow for most of the year.
例如，如果没有树木来吸收太阳的辐射并提供树荫，那么太阳辐射就会完整地到达地面。
For instance, without a tree to absorb radiation from the Sun, to offer shade, the full intensity of that radiation reaches the ground.
没有树木，定居者就无法建房子。
Without trees, settlers had no wood to build houses. Some built houses partly underground.
因为没有树木不成树林吗。
这里没有树木，西面也看不见河。
我有一片森林，但没有树木。
那儿，我发现一片没有树木的开阔地。
没有树木或灌木丛可以遮荫。
就没有树木没有庄稼没有动物没有人。
我们穿过了没有树木的荒地。
没有树木。
就没有树木，没有庄稼，没有动物，没有人。
There would be no trees, no crops, no animals and no people.
然后，女神坐在一块没有树木的平原上休息。
由于冰岛没有树木，所有的建筑材料都需要进口。
Since Iceland has no trees, all building materials have to be imported.
即使有生长的东西，也只是苔或草，几乎没有树木。
If there is anything growing at all it is moss or grass. There are almost no trees.
水坑干涸了，我们到处看到死去的牲口在那没有树木。
The water holes were dried up and we saw dead cattle lying here and there on the treeless.
道路或许是唯一能穿越没有树木和灌木的荒无人烟地区。
Perhaps the only road through the trees and shrubs of the uninhabited area.
如果没有树木遮荫，以提供在围场，屋顶的住房是可取的。
If there are no trees to provide shade in the paddock, a roofed shelter is desirable.
在这个光秃秃没有树木的地方，周围数英里内都没有掩蔽处。
No shelter was available for miles around in this treeless landscape.
就像生活在没有树木的热带草原，你发现水果不够了，动物稀缺。
It's like living on the savannah and discovering you don't have enough fruit and the animals are scarce.
在达尔文和胡克访问时还没有树木，些许雨水落下来就很快蒸发掉了。
Devoid of trees at the time of Darwin and Hooker's visits, the little rain that did fall quickly evaporated away.
但这个院子里满是尘埃，而且没有树木，看上去不是令人愉快的排队等候的地方。
Dusty and treeless, the courtyard seemed like an unpleasant place to stand in line.
在大草原，没有树木可供砍伐作燃料，他们只能搜集他们所能找到的一切。
With few trees to cut for fuel, they collected whatever they could find.
在大草原，没有树木可供砍伐作燃料，他们只能搜集他们所能找到的一切。
With few trees to cut for fuel, they collected whatever they could find.
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