na. 暴洪 [网络] 山洪暴发;骤发洪水;山洪爆发 floods: 洪水aperiodic floods: 不定期洪水be hit by floods: 遭受水灾catastrophic floods: 灾难性洪水frequency of floods: 洪水出现频率下载手机词典可随时随地查词查翻译