Yes, M-W uses the same symble for schwa and /&/, but

来源: 于 2009-03-28 00:57:53 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

when you listen to the audio, they are pronounced differently.

Such problems have confused me for long time and it cost me a lot of time to figure most of them out.