Related topics: Nature
wash·out /ˈwɒʃ-aʊt $ ˈwɒːʃ-, ˈwɑːʃ-/ noun [countableC] informal 1 FAILa failure 失败 The picnic was a total washout – nobody turned up! 野餐彻底失败——根本没人来！
2. DNSGan occasion when heavy rain causes damage or stops an event from happening 〔大雨造成的〕冲毁，损毁；〔活动的〕因雨取消
→ wash out at wash1