To record, press these two buttons together; then rewind , and then press the red button to play back.要录音就得一起按下这两个键, 而后倒回, 按下这个红键播放.I'll play back the text once more.我把课文录音再重放一遍.If you want to play back, press the g...

play back的音标：...

把…打回给对方，后退一步接球，播放， 重播...