We built a snowman, some snow dogs and one big snow fort. We went sliding on the nice hill.

我们堆了一个雪人，一些雪狗和一个大大的雪堡。

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On January 20, 2004, researchers released a swarm of 66 pint-size robots into an empty office building at Fort A. P. Hill, a training center near Fredericksburg, Virginia.

二零零四年一月二十日，研究人员将一个共六十六个机器人群放入了一个位于Fort A. P. Hill空荡的写字楼，这是维吉尼亚州弗雷德里克斯堡附近的一个训练中心。

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They climbed the hill to the round stone tower of Fort Snelling.

他们登上了小山岗，到达了那座由石头砌成的斯内林圆形古堡。

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It was the Boy Scouts of America National Jamboree, which is held every four years at Fort A.P.Hill army base.

VOA: special.2010.08.06

Guide Joao Monteiro steps lightly amidst the ruins of a 16th century fort, on a hill overlooking the town of Cidade Velha on the southern coast of the Cape Verdean island of Santiago.

VOA: standard.2009.06.04

Starting from the University of Bath, the trail links quiet woodland, rare wildlife, an Iron Age hill fort and architectural glories.

BBC: Bath from above

Mr Malim's team believe it may have connected the Wrekin, the capital of the Cornovian tribe, with a hill fort near Oswestry.

BBC: Iron Age road found in Shropshire by archaeologists

From this Iron Age hill fort, built in 400 BC, the views sweep down from the North York Moors and over to the Vale of York and the Vale of Mowbray to the distant Pennines, a low-rise mountain range sometimes dubbed "the backbone of England".

BBC: Eat your way around Yorkshire