yún
云
yǒng
涌
yúnyǒng
ㄩㄣˊㄩㄥˇ
雲涌
云涌 yúnyǒng (1) [scuding dark clouds]∶云彩翻涌突兀 (2) [emerge in a large number]∶喻事物猛烈而迅速发展