n. a flat metal piece (usually a disc) used as money
v. make up
n. 硬币, 金钱, 货币
vt. 铸币, 创造, 杜撰
1. I found a coin on the street.
我在街上找到了一个硬币。
2. She gave me a coin for the vending machine.
她给了我一个硬币，用于自动售货机。
3. Collecting coins is a fun hobby.
收集硬币是一项有趣的爱好。