back out
⇒ 她说和我一起去,可又翻悔了。
She said she'd go with me, but then backed out.
⇒ 现在要翻悔你的承诺为时已晚。
It's too late to go back on your promise.
英语词典包含298861条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。