ton-ton
A gentle, rhythmic tapping sound — knocking softly on a door, chopping vegetables with a knife, or tapping someone's shoulder politely.
💡Knocking on someone's bedroom door — 'I knocked ton-ton on the door.'
ドアをとんとんとノックした。
I knocked ton-ton on the door.
The chef was ___ chopping vegetables on the cutting board.
料理人がまな板の上で○○と野菜を刻んでいた。