healthy对应词：disease
n.病;疾病;弊端;恶疾;痼疾
复数： diseases
例句：
Diet plays an important role in the management of heart disease.
饮食对于心脏病的治疗有重要作用。
Extensive research has been done into this disease.
对这种疾病已进行了广泛研究。
According to official statistics the disease killed over 500 people.
根据官方的统计数字，500多人死于这种疾病。
温馨提示：
