Sectionalizer
分段隔离开关
🗣️ 情景例句
Oh, no sir. We already gave you a discount on each item.
哦，不行，先生。每一件东西我们都给你打过折扣了。
Your right hand is swollen.Does it hurt?
你的右手是肿的.它受伤了吗？
To see is to believe.
百闻不如一见。