吃饭时你应该不发出响声。

You are not supposed to make noise when eating.

他发出响声，吓跑了那些动物。

He made a noise and scared off the animals.

这个小男孩吃东西时发出响声。

The little boy is a noisy feeder .

为什么我们的关节会发出响声？

Why do body joints make popping sounds?

那个旧沙发一坐上去就发出响声。

The old sofa scrunched when one sat in it.

床又咯吱咯吱地发出响声，我跳了起来。

The bed squeaks and I jump.

电吉他: 一种乐器, 用电来发出响声的吉他.

Electric guitar: a musical instrument, a guitar that uses electricity to make it loud.

再说说床，床坐上去会发出响声，被罩上居然有污渍。

Talk about bed, sit on the bed will issue a noise; there are stains on the quilt.

我以为是风吹门使门发出响声的，所以我没有过多地注意这件事。

I thought it was the wind whipping against the door so I didn't pay much attention to it.

人们谈论着他们在那儿看到什么、能做什么，有些机器还发出响声。

People talk about what they can see and do there, and some of the machines are noisy as well.