| 单词 | squall line | 
| 释义 | squall linenoun1    : an intersection or boundary between the cold and the warm winds of an extratropical cyclone or between the cold air of an advancing anticyclone and the warm air of a cyclone : cold front  called also wind-shift line 2    : a line of squalls often 50 to 200 miles ahead of a cold front    | 
	
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