山上越高的地方植物越稀少。
有些曾经随处可见的鸟类现在日益稀少。
Some birds which were once a common sight are now becoming rare.
该省森林茂密，人烟稀少。
那些岛屿中的许多都是荒凉且人烟稀少的。
记住，加油站在那些比较偏远的地区是很稀少的。
Bear in mind that gas stations are scarce in the more remote areas.
这个岛人口稀少。
某些物种可能会变得非常稀少。
世界上35种海马中大多数的种群数据都非常稀少。
Population data for most of the world's 35 seahorse species is sparse.
这些相同的变化周期对该区域稀少的人口产生了重大影响。
These same cycles of change had momentous impacts on the sparse human populations of the region.
由于树木变得稀少，他们不能再建造木制的独木舟来捕鱼，只好捕食鸟类。
As trees became scarce and they could no longer construct wooden canoes for fishing, they ate birds.
可能是雄性可以利用稀少的类胡萝卜素进行免疫防御和解毒，或者吸引雌性。
It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.
这里也有分布稀少、营养丰富的水果，而贝尔发现只有汤姆逊瞪羚才会大量食用这些水果。
There are also sparsely distributed, highly nutritious fruits, and Bell found that only the Thomson's gazelles eat much of these.
和以往的星期天一样，今天城里车辆稀少。
It's a Sunday like any other with the usual light traffic in the city.
这片海滩很美，尤其令人满意的是游客稀少。
The beaches are beautiful, but, best of all , there are very few tourists.
他们一大早就出发了，路上行人稀少，所以旅途花的时间比预期要少。
They had left early in the morning, on quiet roads, and made good time.
苔原是平坦的土地，植被稀少。
最后，人群变得稀少了。
为什么在美国政府和企业的高层职位中女性如此稀少呢？
Why are women in short supply at the top of government and business in the United States?
他的许多旅行都是去很难到达的山区，穿过人烟稀少的原始森林。
Many of his trips were to hard to reach mountain areas, and through wild forests where few people lived.
和棕熊和北极熊一样，树懒熊可能是在树木稀少的环境中进化而来的。
Like brown bears and polar bears, sloth bears may have evolved in an environment with few trees.
这些古老蛇类的化石标本非常稀少，仅有的三个标本的后肢保存完好并可见。
There are few known fossil specimens of these ancient snakes and only three in which the hind limbs are preserved and visible.
因此，左撇子的稀少可能是这些其他伴随的构造特征所带来的不利影响的结果。
Sinistral rarity might, then, be a consequence of possible disadvantages conferred by these other concomitant structural features.
他漫无目的地继续往前走，没过多久，房屋渐渐变得稀少，过路的人也不多了。
He moved on, aimlessly, and in a little while the houses thinned, and the passers-by were infrequent.
间接相互作用导致的已知物种灭绝或破坏的情况的稀少，反映的或许不是这种灾难的罕见，而是没有去寻找或检测它们。
The paucity of known extinctions or disruptions resulting from indirect interactions may reflect not the infrequency of such mishaps but rather the failure to look for or to detect them.
那就解释了为什么最小型的食草动物，汤普森瞪羚，能以水果为食；虽然水果非常有营养，但是在地面上太稀少，不足以维持体型更大的动物生存。
That is why the smallest of the herbivores, Thomson's gazelle, lives on fruit that is very nutritious but too thin on the ground to support a larger animal.
这座造价2.2亿美元的桥，通往人烟稀少的阿拉斯加州格拉维纳。
The $220m bridge goes to the sparsely inhabited island of Gravina, Alaska.
相对于金龟子绿僵菌和球孢白僵菌而言，对于蜡蚧轮枝菌的研究十分稀少。
Compared with Metarhizium anisopliae and Beauveria bassiana, the study on Verticillium lecanii is scarce.
靠近市郊的地方房屋渐渐稀少。
街上行人稀少。
街上行人稀少。
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