I listened to the thwack of the metal balls.

我听着金属球相撞的声音。

Then the woodcutter let his axe fly – Thwack! Everyone heard it.

然后那个伐木工脱手甩出了斧头。哐！的一声，每个人都听见了。

If you rap it with your knuckle, you hear the thwack of gypsum rather than the ring of cold metal.

如果用指关节击之，你能听见石膏的闷响，而非冷冰冰的金属发出的鸣响。

I slide downhill, thwack into the tree that marks the boundary of the next plot.

我滑下山坡，重重地撞在一棵标志着下一块墓地边界的树上。

If you rap it with your knuckle you hear the thwack of gypsum rather than the ring of cold metal.

如果用指关节击之，能听见石膏的闷响，而非冷冰冰的金属发出的鸣响。