Pay attention to tooth pain
本文作者： TEENS
Our teeth are sensitive to pain. TUCHONG 为什么我们的牙齿对痛如此敏感？ Our teeth are hard, like strong bones (骨头) inside our mouth. However, they still feel pain (疼痛的) easily. Why are teeth so sensitive (敏感的) to pain? |  |
| |||||||||||||||||||||||||||||||
|
|
|
主办
|
|
中报二十一世纪（北京）传媒科技有限公司版权所有，未经书面授权，禁止转载或建立镜像。 主办单位：中国日报社 Copyright by 21st Century English Education Media All Rights Reserved 版权所有 复制必究 网站信息网络传播视听节目许可证0108263 京ICP备2024066071号-1  京公网安备 11010502033664号
|
| ||||||
