give one an inch, and one will take a mile字面意思给一英寸，就要走一英里，引申为得寸进尺。

【例句】
We've made compromise and won't sue you. You should not be give one an inch, and one will take a mile.
我们已经让步不再追究你的法律责任了，你不要得寸进尺。

If you don't know the boy well, make sure you go only to public places with him. Remember this rule: Give him an inch, and he will take a mile!
如果你不太了解这个男孩，一定要只和他一起去公共场所。记住这条规则：得寸进尺！