mouthguard
n. 防护牙托;护齿
复数 mouthguards
例句
In addition, Dr. Oexman recommends using a mouthguard, which is a non-invasive way to open the breathing passages.
除此之外,欧克斯曼医师推荐使用牙托,以一种非侵入式的方式打开呼吸道。