Quadruplicates
n. 一式四份\\na. 四倍的；四次方的\\nvt. 使成四倍
??? 情景例句
We're particularly interested in your line of rackets.
我們對貴公司的球拍系列特別感興趣。
A man knows his companion in a long journey and a little inn.
路遙知馬力，日久見人心。
Yes. You have to practise a lot.
是的，你得大量的練習(xí)。