and that's flat! idiom UK informal
没有商量的余地，就这么定了
used to tell someone that the decision you have just announced will not change even if they try to persuade you to change it
I'm not coming, and that's flat! 我不去，没二话可说！
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。