例句與造句

1. After constant amelioration , in 2006 the first commercial prototype mold came into being
   2007年建立公司，并將此具有劃時(shí)代意義的產(chǎn)品正式量產(chǎn)銷售。
2. It's difficult to find prototype mold in a sentence. 用prototype mold造句挺難的