Cost a Pretty Penny 花了一大笔钱
A: Did you see that car?
B: Oh, my gosh! That car is awesome.
A: Yes, I bet it is really fast.
B: That car must have cost a pretty penny!
Ah, it means that something costs a lot of money. Some say the phrase came from a special coin a British king had made long ago. American English is very descriptive, and sometimes we put a colorful word in front of a noun to get our meaning across.
And that's English in a Minute!
