upon the back of

• 紧跟着
• 在 ... 之外

upon the back of的用法和样例：

例句

1. Heavy rain came on the heels of the lightening.
   大雨紧跟着闪电而来。
2. Tom crossed the wire just behind Brown.
   汤姆紧跟着布朗冲过了终点线。

1. You can see for miles from the roof.
   你站在屋顶上可以看到数英里之外。
2. I was surprised by the speediness of their arrival.
   他们的迅速到来出乎我的意料之外。