城里很多人没有大块的地方可以种植，城市园艺组织“阿那卡斯提亚园艺活”的丹尼斯·切斯塔特说，其实人们并不需要大块的地来种东西。
And for those who don't have access to a large space, Dennis Chestnut of the urban gardening group, Groundwork Anacostia, says you don't really need one.
她今天的燧石敲击者是加拿大西蒙·弗雷泽大学的考古学家丹尼斯·桑德·加特。
Her flint-knapper today is Dennis Sandgathe, an archaeologist from Simon Fraser University in Canada.
位于布里斯托尔附近温特伯尔尼的英国飞碟署的丹尼斯·普兰科特表示无法对该视频发表评论，但称有办法鉴别其真伪。
Denis Plunkett, of the British Flying Saucer Bureau, based in Winterbourne, near Bristol, was unable to comment on the video but said there were ways to verify its authenticity.
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