到了第三间办公室，我很幸运地发现D。

On the third try I get lucky. D.

youdao

到了第三间办公室，我很幸运地发现D。

On the third try I get lucky.D.

youdao

临街的第一间是他的餐室，第二间是卧室。 第三间是经堂。

The first room, opening on the street, served him as dining-room, the second was his bedroom, and the third his oratory.

youdao

There are some relative, the notion that the energy gap between n equals one and n equals two is greater than that for n equals two to n equals three. That is correctly represented.

还有很多与之相关的内容，比如说这个观点，第一能量级和第二能量级,之间的能量差要大于第二和第三能量级间的,能量差，而这已经被正确地表示出来了。

麻省理工公开课 - 固态化学导论课程节选