杰克把车门锁上，转过脸来看着凯文·卡洛尔，这家伙一直假扮阿伦。
Jack locks the doors and turns to Kevin Carroll, who had been posing as York.
城中bbc的凯伦·阿伦说，汽车在下m 1高速公路时，从交流道上侧翻，高速公路正好穿越约翰·尼斯堡市中心。
The car overturned as it came off a slip road on the M1 motorway, which travels through Johannesburg city centre, says the BBC's Karen Allen in the city.
晶体学家阿伦·麦凯利用圆圈代表彭罗斯瓷砖砖角处的原子，建造了一个模型，然后计较了将会产生如何的一种衍射图案。
Crystallographer Alan Mackay built a model with circles representing atoms at the corners of Penroses tiles and calculated what sort of diffraction pattern it would produce.
晶体学家阿伦·麦凯利用圆圈代表彭罗斯瓷砖砖角处的原子，建造了一个模型，然后计较了将会产生如何的一种衍射图案。
Crystallographer Alan Mackay built a model with circles representing atoms at the corners of Penroses tiles and calculated what sort of diffraction pattern it would produce.
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