1.be good for 對...有益
例句:My evidence would be good for nothing.
我的證明是毫無用處的
。2.kidney stone 腎結石
例句:Luckily the kidney stone passed before she had to be hospitalized.
幸好這個腎結石在她必須住院之前消失了
。3.digestive system 消化系統
例句:He has suffered from a disorder of the digestive system.
他已患消化系統失調
。4.tooth decay 蛀牙;齲齒
例句:Brushing your teeth regularly helps to ward off tooth decay.
按時刷牙有助于預防蛀牙