英语词汇“Has it happened before”的翻译、意思、用法、释义-英汉汉英双解词典

单词	Has it happened before
释义	Has it happened before 这种情况以前发生过吗
随便看	wind-speed wind speed alarm wind speed and direction wind speed and direction control wind speed and direction setter wind-speed calculating model wind speed calculation Wind speed close to sample wind speed collection wind speed contour line wind speed control system wind speed forecast wind speed forecasting wind speed frequency wind speed grade wind speed indicator wind-speed indicator wind speed mathematic model wind speed measurement wind speed model Wind speed Mtitude Wind speed of grain surface wind speed of sand removing Wind speed of test point wind speed power law