充电器

例句：

1. 1.The laptop needs a new charger to work properly.
   这台笔记本电脑需要一个新的充电器才能正常工作。
2. 2.He bought a new charger for his phone.
   他为他的手机买了一个新充电器。
3. 3.The old charger was not working properly, so we had to replace it.
   旧的充电器不工作正常，所以我们不得不替换它。