上学期我忙碌于社团活动而忽略了学业。
Last semester, I was occupied with club affairs and neglected my studies.
黑暗势力现在狂热的忙碌于谈判以减少责罚吞噬他们自己。
The cabal is now feverishly engaged in negotiating a reduction in the penalties to be levied against them.
所有的网络电视播放器都在忙碌于与电视和电影销售商谈判，该进程还需时日。
All of the online TV players have been busy doing deals with TV and movie distributors, a process which is far from being worked through.
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