The machine was designed to be used in places like transport stations, airports and places of interest where quick and exact announcements are needed most.
这种机器被设计用于最需要快速且准确的公告的地方，如运输站、机场和名胜古迹。
2
This is similar to the determined shopper who knows the exact item he wants as compared to the shopper who simply wishes to look around and see what might be of interest.
The connection between interest rates and inflation may not have been exact, but at least central banks had plenty of theory and evidence to guide them.