coin
单词辨析：
指随时可以支付的钱币，而非支票、信用卡等。
She always has cash on her.
她身上总带着现金。
Shall I pay you in cash or check?
我付你现金还是支票？
We give 10 percent discount for cash.
现金付款的话，我们给予9折优惠。
指买东西找回的钱，或小面值零钱。
Here is the change, sir.
先生，这是找你的钱。
This ticket machine gives change.
这台自动售票机可以找零。
He had no small change to leave as a tip.
他没有零钱留下来付小费。
指用各种金属制成的钱币，如金币、银币、铜币等。
She paid him in coins.
她付给他硬币。
Bob likes to collect foreign coins.
鲍勃喜欢收集外国硬币。
指纸币，相当于 bank note。
There are five hundred pounds in notes on the desk.
桌上有共值500英镑的纸币若干张。
He gave me five fifty-dollar notes.
他给了我5张50美元面额的钞票。
相关例句：
But if you would like to sell this coin to me.
但如果你愿意把这枚钱币卖给我。
And you found that coin.
还有你找到一个硬币？
The word 'lunatic' was coined to describe people who went mad at the full moon.
lunatic是个生造词，用来形容月圆时发疯的人。
We tossed a coin to decide who would go out and buy the buns.
我们掷硬币决定谁出去买小圆面包。
He fished for a coin in his pocket.
他在口袋里摸着找一枚硬币。
The two boys agreed to decide the matter by tossing a coin.
这两个孩子同意用掷硬币的方法来决定这件事。