So let's take the case of acetylene where we have two carbon atoms that are going to be triplebonded to each other, each are bonded to a carbon and then to one hydrogen.
让我们来看一看乙炔的例子，我们有两个碳原子，成三键，每个碳和一个碳一个氢相连。
2
So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triplebonded to n, and then a lone pair on the nitrogen there.