肥胖病

例句：

1. 1. Obesity is a major public health concern in many countries.
   肥胖是许多国家的主要公共健康问题。
2. 2. The doctor prescribed a diet plan for her to lose weight.
   医生为她开了一个减肥饮食计划。
3. 3.Obesity can lead to serious health problems if left untreated.
   如果不治疗，肥胖可能导致严重的健康问题。