the radio is too noisy.would you please turn it( )a little?a on b off c up d down

问题描述:

the radio is too noisy.would you please turn it( )a little?a on b off c up d down

down关小声点
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!