bongo的复数形式怎么写？

A long drum , bongo close square yuan contributory goods and materials.长鼓、小鼓等近方元的捐助物资.Ply change is big, face has bongo package, water proofing property of demonstrative face is poor.厚度变化大, 板面有小鼓包, 说明板面防水性差....

bongo的音标：bongo的英式发音音标为：['bɒŋgəʊ]bongo的美式发音音标为：['bɑŋgoʊ]...

n.小手鼓...