天上幾乎已是一片烏黑, 布滿了一團(tuán)團(tuán)怕人的濃濃的積雨云.It was almost black, dotted with ugly leaden rain clouds.黑壓壓的積雨云低垂在墨西哥灣上空.Black storm clouds were low and heavy over the Gulf.夕陽現(xiàn)場(chǎng)顯示經(jīng)典的積雨云形成的.The sunset scene shows a classic cumulonimbus clou...