千万别学英语提高版 听力时听到一句I don't want to sound dumb,But what does "mwah" stand for?其中I don't want to sound dumb,什么意思,始终不得其意,指教,(美国日常口语)大概也能猜出是什么意思,但其中I don't want to sound dumb,什么意思 另外,能解释为什么这样解释,有证据吗?谢谢