先礼后兵的英文：
[Literal Meaning]
first/courtesy/then/violence
to use violence after courtesy failed

[解释]
礼：礼貌：兵：武力。先按通常的礼节同对方交涉，如果行不通，再用武力或其他强硬手段解决。

[Explanation]
to take strong measures only after courteous ones fail

[例子]
暂时先不能对他们采取强硬的措施，我们应该先礼后兵。

[Example]
Currently we can't take tough measures to them, we should try peaceful means before resorting to force.