在美国，这一层则被称为一楼。

In America, it's the first floor.

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“我不能再往下了，”帽商说，“我已经是在地板这一层了。”

"I can't go no lower," said the Hatter, "I'm on the floor, as it is."

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存在于两个相连地层之间的岩石，可能在这一层是泥板岩，而在另一层中是砂岩；但存在于泥板岩或者砂岩中的化石往往都是相同的。

While rock between two consistent strata might in one place be shale and in another sandstone, the fossils in that shale or sandstone were always the same.

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If I were to hold up two pieces of paper, there's a sense in which they are participating in "Twohood."

如果我拿起两张纸,便有这样一层含义,即,这两张纸分有了 二性

耶鲁公开课 - 死亡课程节选

Well, notice again, on each level of the tree, when I actually do the merging, so this remember, is when I wrote down just the numbers when I bottomed out with the list of size 1.

请注意，在这棵树中的每一层，我真正做合并时，就将每个大小为1的列表中的,数字写下来。

哈佛公开课 - 计算机科学课程节选

Whereas for fluorine, fluorine is smaller than f minus is the one that's the outer shell shown here.

而对于氟来说，氟原子更小,与外部壳层在这的负一价氟离子相比。

麻省理工公开课 - 化学原理课程节选