electric moisture metre

例句：

1. 1. The electric light bulbs are very bright.
   这些电灯泡非常亮。
2. 2. Electric cars are becoming more popular.
   电动汽车越来越受欢迎。
3. 3. The electric fence is a good deterrent for children.
   这个电动围栏对孩子们有很好的威慑作用。