Colwell points out that the study was done in rats, which are nocturnal.

科尔·韦尔指出这项研究是在小白鼠上进行的，而老鼠恰恰是夜间活动动物。

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Police apprehended the suspect early Thursday as he tried to escape from the bus about three hours after the attack, Colwell said.

科尔韦尔说，警方于周四早些时候（凶杀发生后的三小时左右）在巴士上抓获了这名嫌疑犯。

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As Mr. Colwell, the Check ’n Go lobbyist, suggested, much of the concern from the private sector has focused on what the legislation could do, and disagreement is wide over what it actually would do.

正如Check ’n Go公司的说客科威尔先生所说，私人企业最为关注的是新法律能为大家做什么，但是反对意见已经远远盖过了“能做什么”这个问题。

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CNN's Diana LaPosta, Ann Colwell, Meredith Artley and Dorrine Mendoza contributed to this report.

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It has also emerged that the person sitting directly behind Mr Colwell narrowly escaped being shot.

BBC: NEWS | UK | Northern Ireland | Call for inquiry on 'report leak'

Mr Colwell was shot at a checkpoint just outside the police station in Church Street in Ballynahinch.

BBC: NEWS | UK | Northern Ireland | Call for inquiry on 'report leak'