Vast tracts of the country are wild and undeveloped.
这个国家有大片荒芜未开发的土地。
They opened up large tracts of wasteland.
他们开垦了大片荒地。
He sought Ben Rogers, and found him visiting the poor with a basket of tracts.
他找到了本·罗杰斯，发现他带着一篮子布道的小册子去拜访穷人。
The range through these states is mediated by the arousal system, a network of tracts converging from sensory systems to integrating centers in the brain stem.
这些状态的变化是以激发系统作为媒介完成的，而所谓激发系统，是指从各个感觉系统汇聚到位于脑干中整合中心的一个网络。
Large tracts of wasteland have become a granary.
荒滩变成米粮川。
Vast tracts of forest burned for a week.
大范围的林木一直延烧了一个星期。
Some nerve fiber tracts are also visible.
一些神经纤维束也是可见的。
It helps their gastrointestinal tracts develop and mature.
它有助于婴儿的胃肠道发育并成熟。
Rich food importers are acquiring vast tracts of poor countries' farmland.
富裕的粮食进口国正在贫穷国家收购大片农田。
Vast tracts of fertile farmland now lie fallow; agricultural output has slumped.
大片肥沃的农地正在休耕；农业产量大幅下跌。
The bundle sticking out on the right are the optical tracts, leading to the eyes.
右边伸出的一束是视觉传导束，它通向眼睛。
Manasseh's share consisted of ten tracts of land besides Gilead and Bashan east of the Jordan
除了约旦河东的基列和巴珊地之外，还有十分地归玛拿西
Green circles in the desert frequently indicate tracts of agriculture supported by centre-pivot irrigation.
这片位于沙漠里的密集绿圈代表由中枢灌溉系统支持的农业生产。
Yogurt, like other "probiotic" foods, helps to promotes the growth of favorable bacteria in our digestive tracts.
酸奶，像其它的“益生菌”食品一样，有助于促进有利细菌在我们的消化道生长。
Wildfires raged across Russia this summer, killing dozens, leaving thousands homeless, and devastating vast tracts of farmland.
森林大火在这个夏天肆虐俄罗斯全境，数十人死亡，几千人流离失所，并且毁坏了大片农田。
Wei and colleagues found that pandas' digestive tracts do in fact contain bacteria similar to those in the intestines of herbivores.
魏和同事们发现事实上大熊猫消化道具有与食草动物消化道中相似的细菌。
Most strains of avian influenza virus are mainly found in the respiratory and gastrointestinal tracts of infected birds, and not in meat.
大多数禽流感病毒株主要是在受感染禽类的呼吸道和胃肠道中而不是在肉中发现的。
Palm trees grow in tropical regions, and tracts of tropical forests are often cleared to make room for plantations to meet export markets.
棕榈树是一种热带植物。热带地区常常为了扩大棕榈园种植面积而砍伐热带雨林。
Wireless sensors are also cropping up on farms, to measure temperature, moisture and light on tracts of land where wired sensors cannot easily go.
无线传感器也正突然出现在农田里，用以在广阔的土地上测量温度、湿度和亮度，在这里有线传感器铺设起来很费力气。
Large tracts of grassy fields and forests in the area (light to dark green respectively) include nature preserves, grazing lands, and flood control areas.
此地区的大片绿地和植被(分别显示为浅绿和深绿色)包含了自然保护区域、牧地和防洪区。
People could write tracts to oppose the prevailing consensus, and with cheap printing those unorthodox ideas could gain enough influence to topple a king, or a pope.
人们可以书写传单，反对占统治地位的共识。以廉价的方式出版，这些非主流观点能获得足够影响力，足以把堂堂一国之君，甚至教皇拉下马。
A different stain marks nerve cell fibers (bottom), revealing heavy staining in the central region where nerve fiber tracts connect one region of the brain to another.
用一种不同的着色剂标示出了神经细胞纤维(底部)，图中中部着色很重的区域是神经束将大脑的各个不同部位进行连接的部位。
Large tracts of unused compute power and capacity that carry costs associated with the large amount of space consumed by the hardware in large, expensive data centers.
大量未使用的计算能力和容量，它们耗费的成本与大型、昂贵的数据中心中的硬件消耗的大量空间相关联。
Since the island was never developed, it boasts vast tracts of virgin tropical rainforest, mangrove swamps, pristine beaches and species found nowhere else in the world.
由于该岛从未进行过任何开发，岛上有大面积的原始热带雨林，长满红树林的沼泽，原始的海滩和在其他地方见不到的各种生物。
People with bad vision severe injuries to the legs spine and other vital organs chronic diseases of the respiratory tracts and hypertension won't be allowed to make such a jump.
视力不好、腿部、脊椎或其他重要器官有重伤以及患有慢性呼吸道疾病和高血压的人是不允许跳伞的。
Mustapha said salmonella testing in poultry is important because it persists in birds' spleens and reproductive tracts. An infected bird passes the infection on to all of its eggs.
幕斯塔法说，禽类沙门氏菌检测非常重要，因为沙门氏菌会长期依附在禽类的脾脏和生殖系上，每一颗由受感染禽类所生的鸡蛋都会被感染。
These rivers provide fresh water to large tracts of natural land and are situated close to the coast adjacent to coral reefs, mangroves and other biologically diverse Marine environments.
这些河流为大规模的自然土地提供淡水，并且紧邻着海岸带沿岸的珊瑚礁、红树林等多种生物多样化的海洋环境。
These rivers provide fresh water to large tracts of natural land and are situated close to the coast adjacent to coral reefs, mangroves and other biologically diverse Marine environments.
这些河流为大规模的自然土地提供淡水，并且紧邻着海岸带沿岸的珊瑚礁、红树林等多种生物多样化的海洋环境。
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