膨胀的腰围
Americans, and American physicians, are concerned about ballooning waistlines and the accompanying health problems.───美国人，还有美国的医生都很关注胀得像气球一样的腰围和由肥胖而产生的各种健康问题。
Americans, and American physicians, are concerned about ballooning waistlines and the accompanying health problems.
expanding waistline───扩大腰围
baling machines───打捆机
balloon sails───n.游艇帆，三角帆
balloon tires───低压轮胎
balloon vines───气球藤蔓
ballast lines───压载吃水线
ballistic missiles───弹道导弹