Serpex
塞佩克斯碱性耐火材料
🗣️ 情景例句
Don't walk on the grass or you'll be in trouble with the law.
不要踏进草地，不然的话法律会找你麻烦的。
He knocks boldly at the door who brings good news.
彼叩门声响，必来报佳音。
I have a good idea!
我有一个好主意。