used to claim that nothing is free even though it seems to generally be, as an example, if someone offers you a thing they most likely want a little something back from you in return 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 sacrifice, give - endure the lack of; "He gave his everyday https://adaml532pam3.wikiexpression.com/user