[] bottom (out)to stop getting lower or worse停止恶化◆The number of people unemployed has risen by 67 000 since bottoming in April.自从四月的最低点以来，失业人数已上升到 67 000 人。◆There are signs that the country's economy is bottoming out.有迹象显示，这国家的经济正走出谷底。▸ˈbottoming, ˌbottoming ˈout