长度

Acetylation The addition of an acetyl group to a molecule.

乙酰化作用将一个乙酰基加到某个分子上的过程。

But as we sit in Kabul's traffic all I can think is that we are sitting ducks.

但是当我身处于喀布尔的交通中，我想的全部事情就是我们是最易击中的目标。