早上羊发出响亮的羊叫声。

The sheep baa loudly in the morning.

羊叫声是农场上熟悉的声音。

The baa of the sheep was a familiar sound on the farm.

农夫模仿羊叫声来安抚羊群。

The farmer mimicked the baa to calm the sheep.

孩子们听到羊叫声时笑了起来。

The children laughed when they heard the baa.

我能听到从谷仓传来的小羊的羊叫声。

I can hear the baa of the lambs from the barn.

持续的羊叫声让我难以集中精力工作。

The constant bleating made it hard to concentrate on my work.