Bil
基本脉冲电平（Basis Impulse Level）；基本绝缘电平（Basic Insulation Level ）
🗣️ 情景例句
So... what do you think of him?
那么……你觉得他怎么样
Many hands are better than one.
众擎易举。
Learning English is like building a house.
学英语象盖房子。