回复：呵呵，老大，您也是最sweet的****

来源: 于 2010-01-10 09:06:39 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Train your ears first. They are your feed back loops and your measure. In engineering, practice is trial and error, yet without a good measure, practice is pointless.