The middle position as we know today being yellow allowed for traffic to be warned that a stop was coming.

我们现在都知道，中间的黄灯主要是用来提醒人们即将变红灯了。

Buchanan was one of these politicians who didn't want to make either side angry, who wanted to try to find, perhaps, a middle position.

布坎南是这些不想激怒任何一方的政治家之一，他想尝试找到， 也许，一个中间立场。