thwack

1. N-COUNT/SOUND A thwack is a sound made when two solid objects hit each other hard. (硬物互相擊打發出的)撞擊聲; 拍打聲

I listened to the thwack of the metal balls. 我聽著金屬球相撞的聲音。

Then the woodcutter let his axe fly – Thwack! Everyone heard it. 然後那個伐木工脫手甩出了斧頭。哐！的一聲，每個人都聽見了。