When you’re in business, negotiating the best possible deals is a high, if not the highest, priority. As a business owner, you can’t know enough about negotiating.

之前有网友解答过if not the highest, 做让步状语从句，再温习这个课文时，我又有了一个疑惑，when同样也是引导的时间状语从句，那么在一个句子中可以同时出现两个，或两个以上不同的状语从句吗？