give a dog a bad name
成語所屬單字dog
give a dog a bad name — 慣用語
1. Once a person has a bad reputation, it is hard to change because others continue
1.慣用語
釋義
名聲一壞就難翻身
Once a person has a bad reputation, it is hard to change because others continue to blame or suspect them.
例句
After the scandal, give a dog a bad name, and no one trusts him.
She made one mistake, but give a dog a bad name, and it sticks.