C2 离题，与讨论的问题无关
to be in no way connected to the subject that is being discussed
Let's stick to discussing whether the road should be built at all. The exact cost is beside the point. 我们还是继续讨论这条路到底该不该建的问题吧。确切的造价不是问题的根本。
The plot doesn't always make complete sense, but logic is beside the point in a novel like this one.
For most coin enthusiasts, the monetary value of items in their collection is beside the point.
Nobody has the time to read everyone's emails. But civil liberties campaigners say that's beside the point.
The fact that we were at school together is completely beside the point.
See also: beside