in AM, use 美国英语用 double-barreled
										- ADJ (枪)双管的
 A double-barrelled gun has two barrels.- ...a double-barrelled shotgun.
 双管猎枪
 
-  (姓氏)由两部分组成的
 A double-barrelled surname has two parts which are joined by a hyphen, for example 'Miss J. Heydon-Smith'.
 
- ADJ (计划等)有两个主要部分的,双重目的的
 Double-barrelled is used to describe something such as a plan which has two main parts.- The company announced a double-barreled investment and management-compensation plan.
 公司宣布了一份投资和管理补偿的双重计划。