2) The sky is overspread with black clouds.
天空布满乌云。
3) The sky was covered with dark clouds.
乌云遮天。
4) There were masses of dark clouds in the sky.
天上有朵朵乌云.
5) The sky writhed with clouds.
天空里乌云滚滚。
6) Look at the black clouds in the sky.
看天上的乌云。
补充资料：乌云
1.黑云。 2.比喻险恶的形势。 3.比喻妇女的黑发。 4.清代称祭祀开始的仪式。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条