can改為could，will改為should或者would。。。。這個句子感覺太麻煩累贅，虛擬語氣套用的也有些牽強。個人建議改成It should be cool enough if I could express one substance by using diffent sounds.

虛擬語氣表示與事實相反，是對不能做或達不到的才用，如果可以達到目的，不用虛擬語氣，用一般條件從句即可

If you can use a different language descri one thing, it would be cool

If you can use a different language to describe one thing, it would be cool