她唱歌很好听. 用英语怎么说?

You are an angle,you let me hear the sound of happiness!
你是一个天使，你让我听到了幸福的声音！

She is very good at sing.
Her song sounds woderful!

She sings very well
你可能是不知道后面为什么用well 而不用good吧
good是形容词,well是副词,sing是动词
修饰动词用副词

She sings beautifully.
She sings in a beutiful vioce.
She sings well.
She has a gift in singing(她有唱歌的天赋)

She sings well.