重点讲解：
1. suffer from （因疾病或处于其他不利境地而）受苦，受难，受折磨；
例句：I often suffer from unaccountable headaches.
我常莫名其妙地头疼。
2. be devoid of 毫无…的；没有…的；
例句：The skies are virtually devoid of birdlife.
天空中几乎没有任何鸟的踪迹。
3. integrate with （使）（与…）成为一体；（使）结合；（使）合并；
例句：Ann wanted the conservatory to integrate with the kitchen.
安想把温室与厨房打通。
4. take effect 开始实施；生效；有效；
例句：Most changes will take effect instantly.
大部分更动会马上生效。
5. refer to 指的是；
例句：It can refer to an academic subject or a practical skill.
这一词既可指某一学科也可指某种技能。
6. die from 死于；
例句：The plants died from want of water.
这些植物因缺水而死。
