n. 鋼,鋼鐵;鋼制品;兵器;鋼鐵工業;
vt. 包上或鍍上鋼;使堅定;
adj. 鋼制的;鋼鐵業的;堅強的;[色彩]青灰色的;
??? 情景例句
What do you often do in your spare time?
你在業余時間都干些啥?
We are thinking of placing an order for your Flying Pigeon Brand bicycles. We would be very grateful if you could make us an offer for 200 ones with details.