| 释义 |
alto·cumu·lusBrE /ˌæltəʊˈkjuːmjʊləs/ NAmE /ˌæltoʊˈkjuːmjʊləs/ noun [U , C ] (plural alto·cumu·liBrE /ˌæltəʊˈkjuːmjʊlaɪ/ NAmE /ˌæltoʊˈkjuːmjʊlaɪ/ BrE /ˌæltəʊˈkjuːmjʊliː/ NAmE /ˌæltoʊˈkjuːmjʊliː/ ) (specialist ) a layer of round clouds with flat bottoms lying at medium height , or one of the clouds which form this layer 高积云 |