buy in·to
phrasal verbbuy into something
- to buy shares in a company, especially in order to gain some control over it
购买公司股份（尤指为取得部分控制权） - (informal) to believe something, especially an idea that many other people believe in
信从（尤指随大溜） - She had never bought into the idea that to be attractive you have to be thin.
她从不随大溜认为要想有魅力，就得瘦身。
- She had never bought into the idea that to be attractive you have to be thin.