1. letter-box 信箱;

2. mail order 邮购定单;

3. mineral water 矿泉水;

4. mother-tongue 母语;

5. nail varnish 指甲油;

6. news bulletin 新闻公报;

7. pen friend 笔友;

8. pocket money 零用钱;

9. police station 警察分局;

10. post office 邮局;

11. sign language 手语;