And in fact, languages differ in all the ways that we were talking about.

事实上,各种语言在我们所讲的,各个方面上都是有所差别的

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How does this, what we're about to hear, differ?

这是为什么呢,我们马上要听到的会有什么差异

耶鲁公开课 - 聆听音乐课程节选

If I'm talking about two DNA strands and they differ only in one or two base pairs they won't be exact complements and they won't form this double helix.

假设有两条DNA单链,有一两个碱基不能配对,它们就不能完全互补,也无法形成双螺旋形结构

耶鲁公开课 - 生物医学工程探索课程节选