Unstoppered
把堵塞物拿掉
🗣️ 情景例句
Dad! Grandpa! He fell in!
爸爸， 爷爷， 他掉下去了。
Can I stop over on the way?
我在中途可以停吗？
This platform would serve as a port and a railway station.
如果再建些伸出海面的高大的烟囱状通风管，