Polereverser
换向器
🗣️ 情景例句
Yes, it is.
是的，没错。
The young wheat sprouted quickly after the rain.
雨后，新鲜的麦芽迅速的长了出来。
The bison skins were sent by rail to cities to be sold.
野牛皮用火车运到城里出售。