coinducer

例句：

1. 1. The coin exchange at the airport is very convenient for travelers.
   机场的硬币兑换处为旅客提供了极大的便利。
2. 2. The coin converter in the store allows customers to convert foreign coins into local currency.
   商店里的硬币兑换机允许顾客将外币兑换成当地货币。
3. 3. The coin exchange machine at the train station is always busy during peak hours.
   火车站的硬币兑换机在高峰时段总是非常繁忙。