柯林斯詞典nimbus /?n?mb?s/ 1. N-SING A nimbus is a large grey cloud that brings rain or snow. 雨雲(yún)[技術(shù)] [usu N n] ...layers of cold nimbus clouds. ...寒冷的雨雲(yún)層。 返回 nimbus劍橋詞典dark grey cloud that often produces rain or snow 雨雲(yún) 比較cirrus cumulus stratus 返回 nimbus