这是什么味儿?
What”s the smell? 完全不清楚时。
What”s that smell? (这是什么味儿?)
Oh, no! Something”s burning. (噢，不好!是什么糊了吧。)
I wonder what that smell is?
I wonder where that smell is coming from?
什么声音?
What”s that noise?
What”s that noise? (什么声音?)
It”s my alarm clock. …