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| 31. | an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissue |
| 一种动物固醇，通常由肝脏合成，是动物组织中含量最多的类固醇，血液中含量高被认为与各种病情有关。 |
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| 32. | It can be argued that D-glucose is the most abundant carbohydrate and organic compound if we consider |
| 如果将纤维素看作是D-葡萄糖单体的高分子链的连接形式,可以认为D-葡萄糖是最丰富的碳水化合物和有机化合物。 |
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| 33. | They are most abundant in thickets, woodland, and semitimbered areas. |
| 鼬见于北美洲北部、欧亚大陆和北非。灌木丛、林地,有时半森林地区数量最多。在夏季,其毛皮为褐色,喉、胸及腹部为白色。 |
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| 34. | a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust |
| 一种四价非金属元素，地壳中含量仅次于氧，见于粘土、长石、石英和沙中，在晶体管中用作半导体。 |
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| 35. | odorless tasteless nonflammable diatomic gas; constitutes 28 percent of the atmosphere by volume; the most |
| 一种非金属二价元素，通常为无色无嗅无味、不易燃烧的二原子气体，体积占大气的%，地壳中含量最多的元素。 |
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| 36. | It's the biggest and youngest volcanic island in China,It has the mosttyical volcano framc(vcnt),thc most |
| 它是我国最大和最年轻的火山岛，具有中国最典型的火山机构（火山口）、中国最丰富的火山景观、中国保存最完整的多期火山活动。 |
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| 37. | The composition of mantle is mostly oxygen and silicon, accompanied by iron and magnesium as the most |
| 地幔的成分主要是氧、硅，并伴有丰富的铁和镁金属离子，橄榄岩可能是构成地幔的物质。 |
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| 38. | When the wine was gone, and the places where it had been most abundant were raked into a gridiron-pattern |
| 酒吸完了，酒最多的地方划出了许多像炉桥似的指爪 |
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| 39. | "Though only the ninth most abundant element on Earth, it represents about 75% of all matter in the universe |
| 虽然氢在地球上的丰度只占第九位,但占宇宙中所有物质质量的75%。氢过去用于填充飞船;无味的氦已取代它。 |
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| 40. | A very soft, silvery white metal, the sixth most abundant element on Earth, it occurs mainly as halite |
| 钠:碱金属族化学元素，化学符号Na，原子序数11。钠是很软的银白色金属。其含量在地球上占第6位，通常以石盐形式存在，不以单体存在于自然界中。 |
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