one bad apple can spoil the barrel

短语

释义与例句

prov.
  1. 1.

    One bad person or element can have a harmful influence on many others.

    "One of our kittens started chewing on the chair the other day and now they're all doing it! Just goes to show that one bad apple can spoil the barrel."

词源

From the observation that rot of a single fruit can spread to many fruit nearby.

来源：wiktionary