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Sap flows out when the pressure inside the tree is greater than the atmospheric pressure.
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当树内的压力大于大气压力的时候，树液开始流出。 |
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Saplings of a species of tree that dinosaurs once grazed upon go on sale to the public in Australia tomorrow.
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10月23日，澳大利亚将拍卖一批珍稀的瓦勒迈杉树苗。瓦勒迈杉最早出现在侏罗纪时代，曾是恐龙的食物，它被称为是“植物界的活化石”。 |
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Saponins is an activated substance with special physiological functions, such as reducing blood fat, anti-bacteria, anti-virus, anti-oxidization, resistance to free-radical and tumor development, generating immunity etc.
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摘要皂甙是一类具有特殊生理功能的活性物质，具有降血脂、抗菌、抗病毒、抗氧化、抗自由基、抑制肿瘤细胞生长，免疫调节等作用。 |
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Sapphire crystal is hexagonal, rising from a flat base, and the researchers found that most vertical slices of sapphire apparently expose constituent aluminum and oxygen atoms in layouts that promote the formation of nanotubes in orderly rows.
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蓝宝石晶体为六角形，底部为平面，研究人员发现蓝宝石的垂直切片，大多会使蓝宝石成份中的铝和氧原子暴露出来，而且其排列方式可促使奈米管排成规则的形状。 |
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Sapphire: Mental Clarity; Clear mental garbage. Carrier of the Blue ray.
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蓝宝石：有助于净化思想，清除思想垃圾，蓝色光线的载体。 |
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Saprobe (saprophyte) An organism that derives its nourishment by absorbing the products or remains of other organisms.
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腐生植物：该类生物直接以其他生物的光合产物或遗体为营养来源。 |
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Saprobes usually secrete enzymes on their food and absorb the soluble breakdown products.
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它们常会分泌酶类以利于将大分子物质消化分解然后吸收可溶物质。 |
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Sara Sidle: Well, that's obvious, Hodges. If you were a miracle worker, you wouldn't be rude.
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莎拉·西德勒：好的，那很明显，霍奇。如果你是一个神速的工作者，你就不会这么草率。 |
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Sara Sidle: What do you think caused these marks?
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莎拉·西德勒：你认为是什么导致了这些痕迹？ |
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Sara could have found work other than nursing,to tide them over the years,till the childre could support themselves.
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这些年为了把孩子养大成人，萨拉完全可以找个别的工作，不一定非要去当护士。 |
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Sara feels a little ill at ease when she’s around Gary.
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在加里旁边时，萨拉有些不自在。 |
