青蛇中文在线观看剧情介绍:同义替换 suffering n. 痛苦,苦难 poorness n. 穷困;匮乏poverty n. 贫穷,穷困 grief n. 悲痛;不幸nutrition [nju?tr??n] n. 营养,营养学例句 People who sleep less than 7 hours a night tend to have a higher body mass index than people who sleep more,according to data gathered by the...