But at ABC's mainsite, it never quite managed to play video, though it looked like it was on the brink a couple of times.
但是ABC的主站点就怎么也无法播放视频,虽然有的时候它好像就要成功了。
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This has the advantage of not slowing down any new development, but can incur the cost of more difficult integration later on, when changes to the beta site must be re-integrated with the mainsite.