双管手枪

double-barreled───双管散弹枪

double-barrelled───双管

double bridles───双缰绳

double bars───复纵线

double basses───低音提琴（doublebass的复数）

double bassoon───倍低音管

double bedroom───可容双人床卧室

Imagine the world's most complicated mechanical cuckoo bird - hidden not in a clock but in what appears to be a double-barreled pistol.───想像一下世界上最复杂的机械布谷鸟——它并未藏身钟表之中，而是躲藏在了一个看似双管手枪的装置里面。

Imagine the world's most complicated mechanical cuckoo bird - hidden not in a clock but in what appears to be a double-barreled pistol.