save electricity power

• 节电

save electricity power的用法和样例：

例句

1. They don't care to save power,so they keep the lights on all day long.
   他们不在乎节电，所以整天都开着灯。
2. Matching uses the result of economizing on electricity well to be best.
   时间越长效果越明显，匹配使用得好节电效果最佳。