二、not only…but的省略及其变体
1、not only…but also中的also可以省略。有人认为该句型所连接的第二部分最高级形容词或它所表示的范围、程度、影响等超过第一部分时，常将also省略。例如：
He was not only a successful writer but (also) the greatest poet of his time.
它不仅是一位成功的作家，而且还是他那个时代最伟大的诗人。
Not only do they suffer less pain than most women in labor, but the town boasts an unusually low rate of infant mortality.
这不仅使她们比大多数的妇女受痛苦，，而且是城市婴儿死亡率大大降低。
