不要求对价答应做某事，因不涉及钱的问题，此允诺不能得以强制执行。
Promise to do something, without asking for consideration. It cannot be enforced because no money has been involved.
当你答应别人做某事时，脑子里不要存在“也许可能”的想法。
Don't have "Maybe" in your mind when you make promises about what you are going to do.
诺言，誓言：答应做，给予或避免不做某事的庄重有约束力的允诺。
A solemn binding promise to do, give, or refrain from doing something.
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