嗅觉一直是我们的感官中受到了解最少的，直到最近，耶鲁大学的戈登·谢泼德领导的神经科学研究才开始揭示它是如何发挥作用的。
Smell has been the most poorly understood of our senses, and only recently has neuroscience, led by Yale University's Gordon Shepherd, begun to shed light on its workings.
许多父母是霍登口中的“极其偶然打孩子的”直到最近我才把自己放入这一类。
Most parents are at least what Holden calls "very occasional spankers." Until recently I placed myself in this category too.
海登说，这是因为ROV技术只是在最近才得以真正用于实战。
Mr Heydon says it is because the ROV technology has only recently become capable enough.
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