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。
2
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。
3
They climbed the hill to the round stone tower of Fort Snelling.