B2b
abbr. 企業對企業的電子商務模式（business to business）
??? 情景例句
What do you think of life in Beijing?
您覺得北京的生活怎么樣？
Channel 5 is off the air now.
五頻道已經停止播放。
Recent developments in astronomy have made it possible to detect planets in our won Milky Way and in other galaxies.
天文學方面最新發展使得我們能夠在銀河系和其他星系發現行星。