例句
I promise to return your bicycle before dinner.
我保证晚饭前把自行车还给你。
Although renewable technologies show considerable promise, further investment is needed to make them widely affordable.
虽然可再生能源技术展现出巨大潜力，但仍需进一步投资，使其价格能被大众接受。
常用搭配
- keep a promise｜信守承诺
- break a promise｜违背诺言
- promise to do something｜承诺做某事
- show promise｜展现潜力
词形与相关词
promising (adj.) · unpromising (adj.)
用法提示
用promise to do，不用promise doing。