币的用法和样例：
例句
-
我听到了他口袋里叮当碰撞的硬币声。
I heard the clink of coins in his pockets. -
我们来抛硬币决定谁先走吧，你是要正面还是要反面？
Let's flip a coin to decide who should go first - do you want heads or tails? -
硬币滚到钢琴的下面了。
The coin rolled underneath the piano. -
他把硬币倒过来，仔细检查。
He reversed the coin and examined it carefully. -
他衣袋里的硬币叮当乱响。
The coins jingled in his pocket. -
他付给我的都是硬币。
He paid me in coin. -
他往投币孔投入一枚硬币。
He put a coin into the insertion slot. -
小贝壳常被用作简单的货币。
Small seashells were often used as a primitive kind of money.
