I'm just saying,how do we know it's an Iac age?

I'm just saying,how do we know it's an Iac age?
I'm just saying,how do we know it's an Iac age?

I'm just saying,how do we know it's an Iac age?
我是说,我们怎样知道这是一个lac时代?
lac是简写,要看这个语句用在什么地方

我只是说,我们怎么知道这是一个馆际合作的年龄吗?