Sound、noise和voice这三个名词都可以表示“声音”,但它们表示的“声音”不同。

voice意为“嗓音”,指的是人说话或唱歌的声音

She's got a great voice and is singing better than ever.

她的嗓音非常好,现在的唱功比以往任何时候都要好。

‘I promise, ’ she said in a small voice (= a quiet, shy voice) .

“我答应。”她小声说。

noise意为“噪音”,指的是一些嘈杂的、让人觉得不愉快的噪音。

Although Square Dancing is good exercise for the old, sometimes it makes a lot of noise.

虽然广场舞对老年人来说是很好的锻炼项目,但它有时会产生很大的噪音。

sound 意为“声音”,泛指一切可以听到的声音;

the different sounds and smells of the forest

森林里的各种声音、各种气息

She heard the sound of footsteps outside.

她听见外面有脚步声。