thunderclouds是什么意思？

thunderclouds

• n. 雷雨云( thundercloud的名词复数 )，有威胁性或可怕的东西；

例句

• thunderclouds of impending war. 迫在眉睫的战争雷云
• What about lightning initiation within thunderclouds? 发生在雷雨云内部的闪电又是怎麽回事?

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  雷雨云
  A thundercloud is a large dark cloud that is likely to produce thunder and lightning.