How to improve my American English pronunciation?

来源: 于 2013-05-18 15:44:12 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

When I started to learn English in middle school in the 1980's, we only paid attention to spelling and grammar. Now I am working in America and find I am really weak on pronunciation. Please advise how to efficiently improve. Thank you!