- Now they're writing a more abbreviated form, which you'll probably get to if you take organic chemistry, but really it's the exact same idea.

尽管他们现在会写成更简略的形式，如果你选择了有机化学，你以后很可能也会这样，但本质上并没有任何区别。

麻省理工公开课 - 化学原理课程节选