Expedia track the top ten 10 for people calling the call centre and if these relate to problems on the Web site they know what needs to be looked at.

Expedia对拨打呼叫中心的前十个人进行跟踪，而如果这些电话是与网站上的问题有关的，他们可以知道问题出在哪里。

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Using the Euler-Lagrange method, the track of centre of the oil slick and the temporal dispersion scope visualized.

通过欧拉-拉格朗日法，将油膜中心的轨迹和各个时刻的油膜分布情况可视化。

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Thee visa centre offers a fast-track application service for an additional fee.

这个签证中心可提供加急申请服务，此服务需收取额外的费用。 ꤹ。

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As with Iraq, it is his opponent, Barack Obama, who is having to track towards the centre, trying to renounce some of the crowd-pleasing claptrap he uttered in the primaries.

ECONOMIST: The presidential campaign

Campaigners want the running track at Hereford Leisure Centre to bear Mr Tarrant's name.

BBC: John Tarrant, world record breaking runner

The Norwich-born racer got out of the car aided by marshals before going to the track's medical centre.

BBC: SPORT | Motorsport | Formula One | Crash forces Firman out