Unipolarity
[电]单极性
🗣️ 情景例句
Hello, I wish to speak to Xiao Fu.
喂，我想和小付通话。
Please make an appointment with my secretary.
请跟我秘书定个见面时间。
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。