1. a keyed instrument; the locks have not yet been keyed. 
   有键乐器；锁还没有被锁上。
2. a little masterpiece of low-keyed eloquence. 
   低调但是有说服力的短小著作。
3. His speech was keyed to the situation. 
   他的演讲适合那场面。
4. I was keyed up about the examination. 
   我对考试感到紧张。
5. I always get keyed up before an examination. 
   每次考试前我总是很紧张。

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