The parrots were given the intellectually demanding task of pulling a snack on a string up to their beaks, using a co-ordinated combination of claws and beak.

鹦鹉们被分派了一项对智力要求很高的任务，它们要协调爪子和喙，将一份拴在绳子上的零食拉到它们的喙上。

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The cesser clause has established that the cesser of liability is assumed co-extensive only with the lien given to the shipowner.

船舶责任终止条款规定，船舶责任终止人仅与船舶所有人享有留置权享有共同扩展权。

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If an airline captain loses his job at one airline and goes to another, he or she will start over as a co-pilot at entry-level pay and will be given no credit for their experience.

如果一家航空公司的机长丢了工作然后被另一家公司聘用，他就会从副机长做起，拿刚入职员工的工资，他的工作经验并不能使他获得更高的职位和薪水。

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However, the helicopters can deliver a load to given co-ordinates without any human intervention.

ECONOMIST: Autonomous helicopters

Strategic investments by co-operative governments have given them large fleets and huge airports.

CNN: Airlines of the gulf: Shaking up the skies

AFI, a past history of mutual mistrust between Mexican and American law-enforcement officials has given way to closer co-operation under Mr Fox.

ECONOMIST: Drugs and violence in Mexico