droughtn.干旱
drought zones干旱地区
drought crack旱裂
drought event干旱事件
drought engine排水机
drought degree干旱程度
drought stress干旱应激,干旱胁迫
drought dry up长期干旱使 ... 干涸
drought meadow旱草甸,干性草甸
drought survey旱情监视
droughtdefyingadj.抗旱的