| 单词 | 雷云 |
| 释义 | 〔thundercloud〕thunderclouds of impending war.迫在眉睫的战争雷云〔forbidding〕forbidding thunderclouds.令人生畏的雷云〔promise〕thunderclouds that promise rain.有雷云就会有雨〔thunderhead〕The swollen upper portion of a thundercloud, usually associated with the development of a thunderstorm.雷雨云砧，雷暴云砧：雷云上部通常与雷暴的发展有关系的膨胀部分〔thundercloud〕A large dark cloud charged with electricity and producing thunder and lightning; a cumulonimbus cloud.雷云：大片充满电且能制造雷声和闪电的乌云；积雨云 |
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