n.理由；缘故；目的；利益
He is away all year for the sake of his work. 因工作关系，他整年出门在外。
Never do wrong for the sake of money. 绝不要为金钱而做坏事。
It's the company's policy to sacrifice short-term profits for the sake of long-term growth. 为长期发展而牺牲短期利润是公司的方针。
