Online video service provider Xunlei has announced that its paid service for copyrighted video content will be in operation by late February, when users will not be allowed to upload videos either.

月底推出正版视频内容点播收费服务，同时不再允许用户上传内容。

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In a brief statement from the White House, Mr.Obama stressed this will be a complex and challenging operation.

VOA: standard.2010.01.13

I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

耶鲁公开课 - 文学理论导论课程节选

"There will be operation in this area. But it is now a matter of military judgment (of) what is the appropriate time."

VOA: standard.2009.10.12

Road closures will be in operation around the ground after the match to allow access for coaches.

BBC: Berwick and Rangers fans warned by police

Both the old and new boats will be in operation while the crew take part in some final training.

BBC: Lizard's new lifeboat arrives in west Cornwall

Cardiff Airport said a snow plough will be in operation but to check with the airport for any schedule changes.

BBC: Wales snow: 'Rare' red warning issued by Met Office