by word of mouth
idiomPart ofmouth
by word of mouth — idiom
1. by being told directly by another person, rather than through advertising, writi
1.慣用語
釋義
by being told directly by another person, rather than through advertising, writing, or the internet
例句
News of the bakery spread by word of mouth, and soon customers lined up around the block.
The best restaurants in the old town are known only by word of mouth.