The voltage of an electrical current is its force measured in volts. 电压
noun [专属名词] 电压，伏特数
The current lags behind the voltage. 电流滞后于电压。
- voltage 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 38 Water and the traveller
The current lags behind the voltage. 电流滞后于电压。
