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- The black clouds threatened rain. 乌云密布预示着将要下雨。
- Those black clouds look a bit ominous. 乌云压顶，来势不妙。
- A wary glance at the black clouds. 谨慎地瞥了一眼乌云
- These black clouds forebode a violent storm. 这些乌云预示着狂风暴雨即将到来。
- When there are black clouds you can tell it's going to rain. 有乌云的时候，就知道快下雨了。
- Black clouds are an unmistakable sign of coming rain. 乌云是下雨的明显前兆。
- The sky was barred with black clouds. 天空点缀着条条的黑云。
- Those black clouds betoken rain. 那些乌云预示即将下雨。
- Those black clouds presage a storm. 那乌云预示着暴风雨将要来临。
- The lightning flashed out from the black clouds. 乌云中电光闪闪。
- He noticed black clouds of smoke out the window. 他注意到黑烟从窗户往外冒。
- The black clouds indicate that it will rain. 那些黑云表明天要下雨天。
- The black cloud presignified a violent storm. 乌云预示着一场猛烈的暴风雨。
- The black clouds gave warning of an approaching storm. 乌云是暴风雨将要来临的前兆。
- Black clouds blocked out the sun. 乌云遮住了太阳。
- Putty black clouds surged over Turtle's head. 一团团的乌云聚集到乌龟的头顶上，
- Low-hanging black clouds befogged the city. 黑云压城。
- The plane is coming out of a big black cloud. 飞机从乌云中飞出来。
- Look at the black clouds! It is going to rain. 看那黑云!天要下雨啦。
- Look at the black clouds, It's going to rain. 看那些乌云,快下雨了。
