This thesis discussed the design and realization of teaching system, test on-line system, answer system, BBS, exchange on-line system, E-Mail, download center system, management center system.是什么意思_This thesis discussed the design and realization of teaching system, test on-line system, answer system, BBS, exchange on-line system, E-Mail, download center system, management center system.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句