word of mouth什么意思？

word of mouth的音标：word of mouth的英式发音音标为：[wə:d ɔv mauθ]word of mouth的美式发音音标为：[wɚd ʌv maʊθ]...

The story has been passed down by word of mouth.这个故事是口头流传下来的。I have informed him by word of mouth.我已口头通知他了.My products aren't based on advertising hype, they sell by word of mouth.我的产品销售靠的不是天花乱坠的广告宣传，而是良好的口碑。...