1. The best part of the job was her constant exposure to books.
    她这个工作的最大优点是能经常接触书本。

2. He is constant to his purpose.
    他始终抱定目标。

3. After three weeks he was still completely unconscious, and the tube caused him to have a constant, painful sore throat ...
    三周后，他依旧昏迷不醒，而导管使他的喉咙经常疼痛。

4. She was a constant generator of story ideas.
    她脑子里不断产生新故事构思。

5. Constant dropping wears the stone.
    滴水穿石。

6. Constant struggles between smugglers and customs officers have influenced our way of thinking about this matter.
    走私者与海关官员之间经常发生的冲突影响了人们对这件事的看法。