派生词是obesity，中文意思是n. 过度肥胖，肥胖症
Current thinking holds that obesity is more a medical than a psychological problem.现代观点认为肥胖更多是生理问题而不是心理问题。
Obesity and a sedentary lifestyle has been linked with an increased risk of heart disease.
肥胖和久坐的生活方式被认为会增加患心脏病的几率。
