bun-bun
The vibrating buzz of bees or large flying insects. Featured in the famous Japanese children's song 'Bun-bun-bun, hachi ga tobu' (Buzz buzz, the bee flies).
💡A bee flying around the flower garden — 'A big bumblebee is buzzing bun-bun around the sunflowers.'
はちがぶんぶん飛び回っている。
Bees are buzzing bun-bun around.
Bees were flying ___ around the blooming flowers in the garden.
庭に咲いた花の周りをはちが○○飛び回っていた。