insert circuit

例句：

1. 1. The pen was inserted into the notebook.
   钢笔被插入到笔记本里。
2. 2. She inserted a coin into the slot to pay for the meal.
   她把一枚硬币插入插槽中支付餐费。
3. 3. He inserted his key into the lock to open the door.
   他插入钥匙打开门。