by word of mouth 汉语意思： 口头传达，口口相传 通过口碑 经由口头传播 例句： The news spread quickly by word of mouth. 这个消息通过口口相传迅速传播。 Many local restaurants become popular by word of mouth rather than advertising. 许多本地餐厅是靠口碑而不是广告才变得受欢迎的。