Cách sử dụng
The expression "have an axe to grind" means to have a hidden motive or personal interest in something. It is usually used in a negative context to describe someone who has a bias or ulterior motive behind their actions or statements. For example, if a company executive praises a product in a public interview, but they have a financial stake in that product, you could say they "have an axe to grind." It is important to be aware of this expression in order to recognize when someone might not be completely honest or objective about a subject.