promise is a debt
US /ˈprɑː.mɪs ɪz ə det/
UK /ˈprɑː.mɪs ɪz ə det/

成语
1.
许下的诺言就是欠下的债, 言出必行
a proverb meaning that once you have made a promise, you have a moral obligation to fulfill it, just as you have a legal obligation to pay a debt
示例:
•
You said you would help me move this weekend, and a promise is a debt.
你说过这周末会帮我搬家,许下的诺言就是欠下的债。
•
Don't forget your commitment to the charity; a promise is a debt.
别忘了你对慈善机构的承诺;言出必行。
在 Lingoland 学习这个单词