美语听力 English Cafe 165

Topics¹: U.S. Mint; how auctions work; cache versus cash; listen to versus listen for

Words:
mint
coins
circulation
worn out
to melt down
to deface
pennies
auction
high-end
antique
bid
cash
cache
cachet
to listen to
to listen for
 

1 Topics   

题目，主题

参考例句：

• Don't revise a few topics to the exclusion of all others. 不要修改少数论题以致排除所有其他的。
• He covered a wide range of topics with unusual candour. 他极其坦率地谈了许多问题。