by word of mouth的意思|示意

I have informed him by word of mouth.

我已口头通知他了.

《现代汉英综合大词典》

Much of this information is picked up by word of mouth from pervious students.

很多信息是从以前的学生那里听来的.

互联网

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。

柯林斯例句

These stories were transmitted by word of mouth.

这些故事经过口耳相传.

互联网

The story on Jerry's trip got abroad by word of mouth.

杰利的旅行故事以口头传布开来.

辞典例句

Unverified information of uncertain origin usually spread by word of mouth; hearsay.

谣言,谣传;传闻:来源不明且未经证实的信息,通常由口头语言传播; 传说.

互联网