can改为could，will改为should或者would。。。。这个句子感觉太麻烦累赘，虚拟语气套用的也有些牵强。个人建议改成It should be cool enough if I could express one substance by using diffent sounds.

虚拟语气表示与事实相反，是对不能做或达不到的才用，如果可以达到目的，不用虚拟语气，用一般条件从句即可

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