Sandmark
砂印(軋制時落入耐火材料等物形成的鋼板表面缺陷), 夾砂
??? 情景例句
to open the building for us on the next four weekends.
在往后四個周末開放那座建筑。
While you were writing letters,I was reading a book.
當你正在寫信時，我正在讀一本書。
'I've been coming up here night after night for weeks now.
“好幾個星期了，我天天夜里到鐘樓上來。