单词短语 （共5题，每小题1分，共5分）1. run out of 2. in exchange for 3. by coincidence4. be specific to 5.

单词短语 （共5题，每小题1分，共5分）
1. run out of         
2. in exchange for     
3. by coincidence        
4. be specific to     
5. make sense of     用完