1·Hundreds of years later, people developed a new kind of schoolbag called the budai, or the "hip pocket".
几百年后，人们发明了一种新的书包，称为布袋，或“臀部口袋”。
2·Do you realize that every time you take a step, the bones in your hip are subjected to forces between four and five times your body weight?
你是否意识到，你每走一步，你臀部的骨头就会承受你体重4到5倍的力量？
3·When former President Ronald Reagan fell and broke his hip at the age of 89, he joined a group of more than 350,000 elderly Americans who fracture their hips each year.
美国前总统罗纳德·里根在89岁时摔倒摔伤臀部，他加入了每年有35万多名髋部骨折的美国老年人的行列。
4·A positive Brudzinski's sign occurs when flexion of the neck causes involuntary flexion of the knee and hip.
当脖子的弯曲导致膝盖和臀部的不自主弯曲时，这是布鲁金斯氏征的阳性标志。