重点讲解：
1. ever since 自从；打…以后一直；
例句：He's been under a cloud ever since he failed to finish his project on time.
他自从没能按时完成计划以来，就一直受到冷遇。
2. over and over again 一再；再三；反复；
例句：TV ads are usually repeated over and over again.
电视广告通常一遍又一遍地重复播放。
3. at the same time 同时；
例句：At the same time, we have export licence.
同时，我们有出口许可。
4. get ready to do sth. 准备好的；胜任的；
例句：We always get ready to live, but never living.
我们是始终在为生活作准备，却始终不真正地生活。
