重点讲解：
1. adhere to 遵守，遵循（规定或协议）；
We should adhere to the traffic rules.
我们应该遵守交通规则。
2. stick to 遵守，坚持(诺言、协议、决定或原则等)；
Stick to your principles, and you will win through.
坚持你的原则，就会胜利。
3. to date 迄今；到目前为止；
To date, we have received over 200 replies.
到目前为止，我们已收到200多封回信。
4. be capable of 有…能力的；能够…的；
The larger firm was capable of providing a better range of services.
较大的公司能够提供一系列更好的服务。