Bil
基本脉冲电平（Basis Impulse Level）；基本绝缘电平（Basic Insulation Level ）
🗣️ 情景例句
Farming is a hard way to make a dollor.
农业很难赚钱。
His heart swelled with gratitude to her.
他心中充满着对她的感激之情。
By the way, where are you going now?
顺便问一句，你现在去哪里？