A、speed up and rise the volume
B、speed up and decrease the volume
C、slow down and speak softly
D、slow down and speak firmly with power
喵查答案:slow down and speak softly
A、speed up and rise the volume
B、speed up and decrease the volume
C、slow down and speak softly
D、slow down and speak firmly with power
喵查答案:slow down and speak softly