Co-Director of the school's Canine Cognition Center, Evan MacLean, says that the Hungarian results are an important step forward.

该校犬类认知中心副主任埃文·麦克莱恩说匈牙利的结果是很重要的一步。

Airplanes are also likely targets for easily hidden explosive devices, says Robert MacLean, a federal air marshal.

联邦空军元帅罗伯特麦克莱恩说， 飞机也可能成为容易隐藏的爆炸装置的目标。