柯林斯词典nimbus /ˈnɪmbəs/ 1. N-SING A nimbus is a large grey cloud that brings rain or snow. 雨云[技术] [usu N n] ...layers of cold nimbus clouds. ...寒冷的雨云层。 返回 nimbus剑桥词典dark grey cloud that often produces rain or snow 雨云 比较cirrus cumulus stratus 返回 nimbus