Planting them every two or three weeks will provide a continuous harvest into the fall.

VOA: special.2010.03.02

We can do the exact same thing when we talk about lithium, but now instead of breaking it up into two wave functions, we're breaking it up into three wave functions because we have three electrons.

在讨论锂时,我们也可以做，完全相同的事情,但不是把它分为两个波函数，而是分为三个波函数,因为我们有3个电子。

麻省理工公开课 - 化学原理课程节选

And I've divided these into two groups, the big three and the more interesting four.

我将其分为两组，三大因素和四个有趣因素。

耶鲁公开课 - 心理学导论课程节选

China put an astronaut into space in two thousand three, and it plans to send a robotic explorer to the moon two years from now.

VOA: special.2010.04.28

Oftentimes--occasionally-occasionally, oftentimes, somewhere between the two--the beat is divided into three.

常态,特例,特例,常态,有时在两个音之间--节拍被分成了三段

耶鲁公开课 - 聆听音乐课程节选

Planting them every two or three weeks would provide a continuous harvest into the fall.

VOA: special.2009.02.17