Precalcined
预煅烧的
🗣️ 情景例句
Call me John.
叫我， John。
Christmas comes but once a year.
佳节良辰，机会难得。
Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
洞穴勘查——或洞穴勘探——是一项比较新的体育活动。