Bessemerizing
吹氧, 脫碳操作, (酸性)轉(zhuǎn)爐吹(冶煉)法
??? 情景例句
and he's very unhappy about not working.
他對(duì)沒有工作感到怏怏不樂。
Do you often play bridge on Saturday?
你常常在星期六玩橋牌嗎？
Very well, thank you.
很好，謝謝您。