By pressing a tiny amount of nitrogen between two diamonds to a pressure of 25 million pounds per square inch, scientists not only were able to transform the gas into a solid, but they also created a semiconductor similar to silicon.
语法 Sentence Correction-3471
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正确的用户笔记
hoper 2016-03-24 17:45:08
如果主语放在not only前面的话，后面是不能用THEY主语的 (A) not only…but also连接对象不对称，but also之间的they多余。
xiaolaipi 2014-12-30 13:30:38
were able to transform & created --- not a parallel structure
励志yy 2016-11-11 17:21:37
but also中间有they 和they are都是多余的
又是羊 2016-10-04 04:40:57
they多余
仲夏夜之梦 2014-05-02 23:40:27
not only...but also不平行
