Aerocasing
氰化鈣液體氰化法, 鈣鹽氰化
??? 情景例句
How you doing?
你怎么樣了？
In secondary school, children get more advanced knowledge.
中學(xué)的小孩會(huì)得到進(jìn)一步的知識(shí)。
Which speech are you going to listen to this afternoon?
今天下午你準(zhǔn)備去聽哪個(gè)報(bào)告？