Your teeth start chattering when the twitching gets to your jaw muscles 当下巴肌肉开始抽搐的时候你的牙齿就会开始打颤。
2.
Giant pandas have large molar teeth and strong jaw muscles for crushing tough bamboo 为咬碎坚韧的竹子，大熊猫有大的磨牙牙齿和强壮的颚肌肉。
3.
After surgery you may experience jaw muscle stiffness and limited opening of your mouth . this is normal and will improve in 5 to 10 days 手术后您可能经历颚肌肉之僵硬及开口困难。这是正常的，且在5至10天内改善，请每天练习开口运动及热敷。
4.
Neuroscientists at the universities of michigan at ann arbor and maryland injected saltwater into the jaw muscles of healthy young male volunteers to cause pain 美国安娜堡密西根大学及马里兰大学的神经科学家，把盐水注射到年轻男性志愿者的下巴肌肉以引起疼痛。
