【词汇解释】
1.mass n. 块,大量,众多 adj. 群众的,大规模的 v. 集中
A great mass of rock had fallen from the cliff and now blocked the road.
一大堆岩石从悬崖上掉了下来,堵塞了道路。
2.obese adj. 极肥胖的
Obese people find it difficult to stop overeating.
胖人觉得一吃就过量,难以控制。
Obese patients are advised to change their diet.
建议肥胖病人改变饮食。