Definition: something that you hear or that can be heard Level: A2
他们能听到远处传来的钟声。
They could hear the ___sound of a bell tolling in the distance.
她一动不动地站着，没发出一点声响。
She stood completely still, not making a ___sound.
声音在水中可以传播很远的距离。
___Sound can travel over very large distances in water.
