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| 医药和健康 | |
| 摘 要： | A painkiller is a drug which reduces or stops physical pain. ＂1 took a couple of painkillers to stop the terrible pain in my head.＂If you ＂sprain＂ your ankle （for example）, you accidentally damage it by twisting it violently. ＂1 sprained my ankle when I was playing basketball.＂ |
| 关 键 词： | 英语学习 学习方法 阅读知识 阅读材料 |
| 本文献已被 维普 等数据库收录！ | |