I would say with the aid of an energy level diagram explain the fact that helium is found as atomic gas and not molecular. How about this one?

我要说的是，在能级图的帮助下,可以解释氦气是单原子气体,而不是分子气体这一事实,那么这个呢？

麻省理工公开课 - 固态化学导论课程节选

It's a single gene defect and we know exactly where the genetic defect is in sickle cell.

是一种单基因缺陷,而且我们准确地知道,镰状红细胞贫血的基因缺陷在哪里

耶鲁公开课 - 生物医学工程探索课程节选

So tone poems are one in movement, and we have got other kinds of genres in music.

交响诗都是单乐章的,所以我们又了解到一种音乐风格

耶鲁公开课 - 聆听音乐课程节选

Monolatry was an improvement. It was getting better.

而单神崇拜则是一种进步，相比之下它会好一些。

耶鲁公开课 - 旧约导论课程节选

So, if you're a native monolingual speaker of English you hear speech and each sound you hear is categorized as falling into one of those forty morphemes--sorry, phonemes.

如果你是英语母语的单语说话者,你听到一段演讲,你所听到的每个声音,都被归类为这四十个音位中的一个

耶鲁公开课 - 心理学导论课程节选

Because of this, because cystic fibrosis is a disease that's caused by a single gene defect, there's been great interest in trying to treat cystic fibrosis with gene therapy.

就是因为如此,就因为囊胞性纤维症,是一种单基因病,人们对于用基因治疗,治愈囊胞性纤维症产生了很大的兴趣

耶鲁公开课 - 生物医学工程探索课程节选