surely

certainly, naturally, of course, surely

这些副词或词组均有“肯定地，当然”之意。
certainly: 强调有把握，深信不疑。
naturally: 指自然而然，毫无造作或天生如此。
of course: 指毫无疑问，自然如此。可与certainly和naturally换用。
surely: 表一种必然的可能性，也可表示信心或不轻信。强调主观判断。

副词 surely:

1. definitely or positively (`sure' is sometimes used informally for `surely')
   同义词：certainly, sure, for sure, for certain, sure enough, sure as shooting

1. He was surely about to change his mind.
   他一定会改变主意。
2. We can surely overcome these difficulties as long as we are closely united.
   只要我们紧密团结就能克服困难。
3. Surely not!
   怎么能这样！
4. That's wrong, surely.
   这显然是错的。
5. You're surely not asking 40 for this book?' Yes it's cheap at the price!'
   ｀这本书你绝不会要价40英镑吧?＇｀是40英镑--物有所值啊!＇