荒疏: neglect practice; out of practice; rusty; rustiness 短语和例子她对唱歌荒疏了。 she was out of practice at singing. 我不能流利地说英语, 因为我已荒疏了。 i can't speak english fluently as i am out of practice
对唱: musical dialogue in antiphonal style; antiphonal singing; sing in antiphonal style