Tomac
頓巴黃銅(銅鋅合金)
??? 情景例句
To help us make this transaction possible,
是的，為了促成這筆交易，
He is having a temper tantrum.
他在大發(fā)脾氣。
Even more processes are never patented at all but kept as secret processes.
更多的工藝過(guò)程根本就不會(huì)取得專利權(quán)，而是作為秘方保存著。