be hard-earned 来之不易

“来之不易”，汉语成语，意思是得到它不容易；表示财物的取得或事物的成功是不容易的。可以翻译为“be hard-earned，not easily come by或not be easily achieved/obtained/got。”

例句：

我们的胜利来之不易。

Victory did not come easily for us.

两国间的传统友谊来之不易，我们要加倍珍惜。

We must redouble our efforts to treasure the hard-earned traditional ties between the two countries.