Nasonite
氯硅钙铅矿
🗣️ 情景例句
Riverdale High School
Riverdale高中
Yes, we have been interested in new system.
是的，我们对新系统很感兴趣。
He explained that he had tried to fix the air-line to the supply line that ran round the port but could not because the fittings did not match.
他解释说他想供气管安装到铺设在码头周围的供应管上，但因为接头不相配而接不上。