And they're all trying to set up this thing called a collective bargaining agreement. Can you just explain exactly what that is?

他们都在努力建立一个叫做集体谈判协议的东西。你能解释一下那是什么吗？

One way to check the president's launch authority would be to allow first use, but only with collective agreement, from congressional leaders, say, or the cabinet.

检查总统发射权限的一种方法是允许先使用，但必须得到国会领导人或内阁的集体同意。