Most polar bears could disappear by the end of the century because of global warming, scientists say.
科学家称，由于全球变暖，多数北极熊可能会在本世纪末消失。
As the researchers pointed out, because polar bears live primarily on sea ice, their remains often end up in the ocean.
如同研究人员指出的，由于北极熊都生活在海冰上，它们的尸体最终留在了海洋中。
The plumber had always been lucky at games. But the day he went to the carnival with the polar bear it all came to a poignant end.
这个水暖工玩游戏时一贯幸运，但是那天他和北极熊一起去参加欢庆会时，他的运气令人痛苦地结束了。
There were 22 microtubules originated from the polar ring, and extended alongside the inner pellicular complex to the posterior end of the merozoite.
有22根微管发自极环，沿内膜复合体向体后延伸至尾端。
Based on the general synthesis of SBS by anionic polymerization mechanism, we have carried out the copolymerization of SBS with several polar monomers by conversion of end-group of SBS.
本论文研究目标是在常规阴离子聚合方法合成sbs的基础上，通过端基转化实现了SBS与极性单体共聚。
Steve and Jack gave a talk about their trek across the Polar ice cap. It was very interesting but it made my hair stand on end just to hear about the dangers they faced.
史蒂夫和杰克讲述了他们在极地冰盖的一段艰苦跋涉，故事津津有味，只是听到他们遇到种种险情时，我吓得很。
The FW angles and on equators depend on the dimension of end head and the condition of geodesic FW. Generally speaking, the polar holes of …
依此，两赤道圆处FW角必须以左右封头几何尺寸及测地线FW条件来确定。
The FW angles and on equators depend on the dimension of end head and the condition of geodesic FW. Generally speaking, the polar holes of …
依此，两赤道圆处FW角必须以左右封头几何尺寸及测地线FW条件来确定。
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