adj. supernatant ; superior
我们或许可以设法清理出船上层的一些客舱。
We might try to clear up some of the cabins in the superstructure.
所有学生都可以进入这栋楼上层的写作中心。
All students have access to the Writing Center on the upper floor of this building.
当水被抽出来时,剩余的空间被上层的泥土填满压实。
As the water is pumped out, the vacant space left is compacted by the weight of the earth above.
By keeping women under the household of the men of their original family, the upper-class Romans tried to balance these different households in size and importance.
所以女子保留娘家的家户关系,有助于罗马上层阶级,平衡不同家户的规模及地位。
When it breaks this bond, that chlorine atom, a free chlorine atom comes down and reacts, this is ozone, with the ozone in the upper atmosphere.
当它打破这个化学键,氯原子,一个自由的氯原子下来,和在大气层的上方的臭氧反应,这就是臭氧,在大气上层有臭氧。
They did this because they didn't want the upper-class in Rome, who were the elite, they didn't want any one household, or any small group of households, to become too powerful.
因为他们不想罗马的上层阶级,即精英阶层,一户独大。
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