| 单词 | polar vortex | 
| 释义 | polar vortexnoun  meteorology a large mass of rotating air located in the upper-middle atmospheric layers over either of the earth's poles, typically behind a polar front  | 
	
| 随便看 | 
英语词典包含233703条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。