| 释义 |
〔wary〕a wary glance at the black clouds.谨慎地瞥了一眼乌云〔ugly〕ugly black clouds in the sky.天空中不祥的乌云〔turn〕Storm clouds eddied overhead.乌云在头顶翻滚。〔dissipate〕The dark clouds finally dissipated.乌云最后消散了〔portend〕black clouds that portend a storm.预示着风暴到来的乌云〔thundercloud〕A large dark cloud charged with electricity and producing thunder and lightning; a cumulonimbus cloud.雷云：大片充满电且能制造雷声和闪电的乌云；积雨云〔overspread〕Dark clouds are overspreading the sky.乌云布满了天空〔scud〕dark clouds scudding by.黑黑的乌云滚滚而来 |