electric alarm clock

例句：

1. 1.The electric light bulb is very bright.
   这个电灯泡非常亮。
2. 2. Electric cars are becoming more popular.
   电动汽车越来越受欢迎。
3. 3. The electric fence keeps the animals in their pens.
   这个电围栏让动物们待在围栏里。