They usually operated in bands between ten and twenty strong and relied for survival on difficult terrain and bad transport.
他们通常以10到20人的队伍作战，很坚强，依靠艰难的地形和糟糕的交通条件生存下来。
Asia, with its multiplicity of cultures and customs, is a particularly difficult terrain.
亚洲有着多样的文化和习俗，是一个特别复杂的地区。
The Dangers: Falling trees, cutting equipment, difficult terrain.
危险处：折断的树，切割设备，险峻的地形。
By choosing Charlotte, Mr Obama has taken the fight to difficult terrain.
而通过选择夏洛特，奥巴马先生把战场带到了艰难地带。
It's a 4-legged robot that can navigate difficult terrain and correct its balance when shoved.
这是一只四足机器人，可浏览复杂地形并在其推进时调整平衡。
A horse added to a team of horses to assist a wagon through high water or over difficult terrain.
马车之后的额外的马加入一小组马的一匹马，帮助四轮运货马车通过深水或越过困难地形。
The Hill and Mountain agro-ecosystem is characterized by very little irrigated land and difficult terrain.
在山与山农业生态系统的特点是很少的灌溉土地，地势崎岖。
Severe resource constraints and difficult terrain limit access to health-care facilities in many parts of Nepal.
尼泊尔很多地区存在着严重的资源制约因素和不利的地形条件，这些不利因素限制了人们使用医疗设施的能力。
Due to difficult terrain, known as "two lock and key unparalleled in Beijing, the Great Wall the first hurdle," said.
因地势险要，素有“两京锁钥无双地，万里长城第一关”之称。
Vietcong guerrillas were often difficult to distinguish from civilians and moved effectively in the difficult terrain.
越共游击队经常很难与平民区分开来，并且在复杂的地形中行动迅捷。
Good Norwegian architects excel at building harmonic structures in difficult terrain and the end result is often poetic.
优秀的挪威建筑师擅长在不同的地形上建造与之和谐的建筑—最终的结果往往富有诗意。
Runners from around the world will face freezing temperatures, chilly winds and difficult terrain during the 42.195-km race.
在长达四万二千一百九十五米长的赛程中，来自世界各地的长跑好手将面临冰冻的气温、刺骨的寒风和崎岖难行的地形。
A robot may consist of one arm that can spot weld automobile frames; or it might be a pack mule that can carry heavy gear over difficult terrain. 4.
机器人可能只有一只点焊手机框架的手；或者可能是一头在复杂地形中托运东西的电驴。
The Petit Basset Griffon Vendéen is a French scent hound developed first and foremost to hunt small game over the rough and difficult terrain of the Vendéen region.
贝吉格里芬凡丁犬是一种嗅觉猎犬，培养目的是用来在崎岖艰难的芬凡丁地区捕捉小型猎物。
Zhangbei County in Hebei Province is located in the northwest, the southern edge of Inner Mongolia plateau of Bashang region strategically located and difficult terrain, climate unique.
张北县地处河北省西北部，内蒙古高原南缘的坝上地区地势险要，气候独特。
The more difficult second level requires a flight of 180 seconds followed by a landing on simulated lunar terrain, complete with rocks and craters.
更困难的第二个级别，要求飞行180秒，接着在遍布岩石和陨石坑的模拟月球地形上降落。
This is not just because the swamp's terrain makes firefighting difficult, but also because, counterintuitive as it seems, the Okefenokee wetlands provide ample fuel.
不仅仅是沼泽地形使灭火工作难以进行，还有一点似乎有些不可思议的就是，奥克弗诺基湿地本身也拥有大量易燃物。
Inpractice, this standard can be difficult to apply to organisms isolatedby distance or terrain or to plants (and, of course, fossils do notbreed).
在现实世界中，此标准可能难以应用到相距遥远的种群，由地理环境分隔的种群，或是植物种群（化石显然也无法繁殖）。
As the Shanghai downtown construction-intensive, complex terrain, has been the focus of three-dimensional modeling and difficult.
由于上海中心城区建筑密集，地形复杂，一直是三维建模的重点和难点。
An enemy force that is dispersed in an urban area or other close terrain, and perhaps intermixed with the noncombatant population, is highly difficult to find and attack.
一支疏散到城市或者其它封闭地形下，以及可能与非战斗人群混杂在一起的敌军，是非常难以发现和进攻的。
The steep ruggedness of the volcanic terrain made this work very difficult; it required picks, sledgehammers, and a lot of sweat.
由于火山地形险峻陡峭，他们的活干得很艰难，十字镐和重锤都要派上用场，而且汗流浃背。
Nowadays, in mountain railroad engineering survey, the efficiency of traditional leveling method is low, is very difficult to practice because of terrain undulation being big.
目前在山区铁路工程测量过程中，由于地形起伏较大，传统的水准测量效率低，非常难以实施。
Seafloor terrain and relief can express spatial information of oceanic world, and they are also seafloor field that are difficult to be detected by optics and electromagnetism.
海底地形地貌能表现海洋世界重要的空间信息，也是常规光学和电磁手段难以探测的水下区域。
Estimates of the wild panda population are difficult due to the rugged terrain they live in, but most experts agree that fewer than 1000 remain free.
野放熊猫数量很难估计，因为它们都住在崎岖不平的地区。但专家大多认为野生熊猫的总数不到1000只。
Estimates of the wild panda population are difficult due to the rugged terrain they live in, but most experts agree that fewer than 1000 remain free.
野放熊猫数量很难估计，因为它们都住在崎岖不平的地区。但专家大多认为野生熊猫的总数不到1000只。
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