动物园里喧噪得很，原来是一群牛蛙在叫。

The noise in the zoo turned out to be the croaks of bullfrogs.

在思特里克·兰德和尼柯·尔斯坐的酒吧间里摆着一架自动钢琴，机械地演奏着喧噪聒耳的舞曲。

In the bar in which Strickland and Nichols sat a mechanical piano was loudly grinding out dance music.