you can't win them all 不可能凡事都能赢；风水轮流转；你不可能总是一帆风顺

【例句】
You can't win them all, you win some, you lose some.
风水轮流转，你有得就会有失。

I thought we'd get the building contract, but I suppose you can't win them all.
我原以为我们能得到这份建筑合同，但面在看来不可能事事都成功。