I can hardly heat the radio. Would you please ______?
A. turn it on B. turn it down
C. turn it up D. turn it off
I can hardly heat the radio. Would you please ______?
A. turn it on B. turn it down
C. turn it up D. turn it off
C
turn up 开大一些;turn off关掉; turn on 打开;turn down关小一些。