notonly的强调句型

1、The contraceptive pill is the worst offender， but it is not the only drug to deplete the body's vitamin levels.避孕药的危害最大，但是它并不是唯一一种消耗体内维生素的药物。

2、It is not bad， only it is a bit too dear.东西倒不坏，就是太贵了些。

3、It is not only his tragedy but our teaching system's.它不仅是他的悲剧，但我们的教学体系。