Snotter
鋼鑄件中的氧化鈰夾雜物
??? 情景例句
Yes? Can I do something for you?
什么事？我能為您效勞嗎？
What do you think?Is that right?
你認(rèn)為什么?那是正確的？
They were glad of the examination being over.
他們?yōu)榭荚嚱Y(jié)束了而高興。