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1.We must face a sea of troubles and bear it.
对这困难我们必须正视, 必须忍受。收藏指正
2.Some people cannot bear teavelling by sea.
有的人坐海船受不了。收藏指正
3."Because the observed trajectory of Arctic sea ice decline appears to be underestimated by currently available models, this assessment of future polar bear status may be conservative."
“由于目前现有的模型对北极海冰融化速度的估计可能不足，所以对北极熊未来命运的估计可能有些保守。”收藏指正
4.If it became customary to sojourn long in places where the air does not naturally penetrate, as in diving-bells sunk in the sea, a supply of air artificially furnished would, like water conveyed into houses, bear a price: and if from any revolution in nature the atmosphere became too scanty for the consumption, or could be monopolized, air might acquire a very high marketable value.
如果 人们习惯于长期居住在空气不能自然地进入的地方(例如沉入海中的潜水钟)，那么，人工供应的空气就会象自来水那样具有价格。如果由于自然界的剧烈变革，空气变得极为稀薄，不足以满足人类的需要，或可以独占空气，空气便会获得非常高的市场价格。收藏指正
5.Polar bear hair is hollow to trap air for insulation while the sea otter has the densest fur with 125,000 hairs per cm2.
北极熊的毛发是中空的，用以困住绝缘空气层；海獭的毛皮稠密到每平方公分十二万根。收藏指正
6.The fate of polar bears could be even bleaker than that estimate, because sea ice in the Arctic might be vanishing faster than the available computer models predict, the geological survey said in a report aimed at determining whether the big white bear should be listed as a threatened species.
美国一项地质勘探报告称，由于北极圈海冰的融化速度可能比现有电脑模型所预测的要快，因此北极熊的命运可能比预计的要悲惨。该报告旨在确定是否将北极熊列为濒危物种。收藏指正
7.In January, the US Fish and Wildlife Service proposed listing the polar bear as a threatened species under the Endangered Species Act, noting polar bears depended on sea ice as a platform to hunt seals, their main prey.
今年1月，美国鱼类及野生动物保护局提议将北极熊列入《濒危物种法案》的濒危物种名单，并指出北极熊主要依靠海冰这一“平台”来捕食海豹。收藏指正
8.In structural engineering,hydraulic concrete is often used for the construction of a cyclical bear or fresh water,sea water or ice scour,erosion,and the knock-on effect on the permeability of concrete used hydraulic structures,it has special requirements and regulations.
在工程结构中,水工混凝土是用以修建经常或周期性的承受淡水、海水或冰块的冲刷、侵蚀、渗透和撞击作用的水工建筑物所用的混凝土,其有特殊的要求和规定。收藏指正
9.The immediate concern of new, massive walrus groups for the U.S. Fish and Wildlife Service is danger to the animals from stampedes. Panic caused by a low-flying airplane, a boat or an approaching polar bear can send a herd rushing to the sea. Young animals can be crushed by adults weighing 2,000 pounds or more.
美国鱼类和野生动物管理局担心集体大迁移的海象会发生踩踏的危险。低空飞过的飞机、巡游的轮船或在附近出没的北极熊都会使海象受到惊吓而冲进海里，幼象可能会被重达2000多磅的成年象压伤甚至压死。收藏指正
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