他想，“在右手边，应该能看到三层的火车站”——它就在那里。

He thought, "On the right-hand side you should see the three-platform train station"—and there it was.

youdao

现在我们进行了一层或者三层的抽象。

Jumping up a level or three of abstraction now.

youdao

第三层的细节是属性配置。

The next level of detail is the configuration properties.

youdao

Well, I guess it's the problem that people who teach the eighteenth-century novel always have, or the Victorian novel: the Victorian novel like the triple-decker, the three-volume novel.

好吧，我猜这个问题是,讲授十八世纪小说,或维多利亚时期小说的人经常遇到的：,像维多利亚时期的三层小说，三卷本小说。

耶鲁公开课 - 1945年后的美国小说课程节选

We're like two-story, three-stories. That's about it.

我们一般建两层或三层的楼。一般就是这样。

美国的不动产市场 - SpeakingMax英语口语达人

So, in order to fill up our shell, what we need is 3 times 8 or 24 electrons.

因此，为了填满所有的壳层，我们需要三乘以八也就是二十四个电子。

麻省理工公开课 - 化学原理课程节选