We used the therapia group and contract group to observe the clinic effect.

设治疗组、对照组，观察临床疗效。

youdao

Valas leaves the group at this point, his contract fulfilled.

此时，瓦拉斯履行了他的合同，离开了队伍。

youdao

Mr. Li continued, "Together with the completion of our acquisition of Digital Media Group earlier this year, this contract helps to solidify our leadership position on subway systems nationally.

李利民补充道，“加上今年初本公司完成对数码媒体集团的收购，这份合约有助于巩固我们在全国地铁系统的领先地位。

youdao

Spencer Dickerson of the U.S. Contract Tower Association, an airport industry group, said contract towers are taking a disproportionate brunt of the closures.

CNN: FAA begins process to close 168 towers on April 1

However the Department seems to have understated the long-term risks when awarding the contract to First Group.

BBC: What derailed the Transport Department

If you're kind of organising your own cleaning contract for a group of streets, someone else is doing it - isn't that better done by the local council.

BBC: Politics Show, Sunday 23 October 2005