make a vow (méik à wǎo)

Idiom Promise

含义

to make a serious promise or pledge

做出一个认真的承诺或誓言 (zuò chū yīgè rènzhēn de chéngnuò huò shìyán)

例句

"They made a vow to stay together forever."

"他们发誓永远在一起。" (Tāmen fāshì yǒngyuǎn zài yīqǐ.)