counter O reset

例句：

1. 1.The teacher used a counter to keep track of the students' progress.
   老师用一个计数器来跟踪学生的进度。
2. 2. The engineer designed a counter to balance the weight of the machine.
   工程师设计了一个计数器来平衡机器的重量。
3. 3. The counter was used to measure the amount of money in the bank.
   计数器被用来测量银行中的金额。