黄金哇塞赛
可以用 launch 来表示上线eg:YouTube had launched only three months before his graduation and Twitter wouldn't arrive until nearly a year later.
shenleireg
系统上线 [词典] online implementing; [例句]而新的SAP系统上线前,如何将原有系统中的大量数据传输至SAP系统;But before the implementation of SAP system, how should a large amount of data transfer to SAP system?