double bassoon

美 [ˌdʌbl bəˈsuːn]英 [ˌdʌbl bəˈsuːn]
  • 倍低音管;双簧管
double bassoondouble bassoon

noun

1
the bassoon that is the largest instrument in the oboe family
Synonym: contrabassoon contrafagotto

数据来源:WordNet