A:What's this, I wonder?
我想知道这是什么？
B:I'm not sure.Let me have a look.....It could be a coffee grinder.
我不肯定。让我看看…它可能是咖啡研磨器。
A:A coffee grinder?
咖啡研磨器？
B:Yes,it must be used for grinding coffee beans.
是的，它一定是用来磨咖啡豆。
A:Oh,that would be very useful.
噢，它应该很有用。
