Definition
This phrase is used to express that something must be done because it has been ordered by someone in authority, even if one does not agree with it.
（通常指即使不贊成）命令就是命令，命令必須執行
I don't particularly like this plan, but orders are orders, and we must proceed as instructed.
我不太喜歡這個計劃，但命令就是命令，我們必須按照指示進行。
Even if it doesn't seem reasonable, orders are orders, and we cannot disobey our superior's instructions.
即使這看起來不合理，命令就是命令，我們不能違背上級的指示。
Although everyone thinks this task is absurd, orders are orders, and we still have to do it.
雖然大家都認為這項任務很荒謬，但命令就是命令，我們還是得完成它。