Let me ask you, how come when I call your computer support line...
我问你为何打去 你的电脑客服部。
传说之境
And America was forced to broaden their support lines into Afghanistan through the three central Asian bordering countries as well.
同时，美国也被迫通过与中亚接壤的三个国家扩大对阿富汗的支援。
老友记第三季 Friends Season_03
You are iron. You are steel! Let me ask you something, how come when I call your computer support line, I have to wait an hour and a half?
你是铁! 你是钢 我问你为何打去你的电脑客服部得等上一个半小时?
英语百科
Supporting line
In geometry, a supporting lineL of a curve C in the plane is a line that contains a point of C, but does not separate any two points of C. In other words, C lies completely in one of the two closed half-planes defined by L and has at least one point on L.