black cloud 
Schwarze Wolke 
nuvola nera 
nuage noir 
nube negra black cloud 7 乌云 [烏雲] wūyún (black-cloud) black cloud: 一片/块/朵~ a black cloud || ~翻滚 (f(a blacrolling black clouds || ~密布 dense black clouds '| Goethebuch | Vietnamese |
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| Oxford3000Ten |
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| GLOSSIKA |
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