The Arctic Circle is an imaginary line drawn around the northern part of the world at approximately 66° North.
北极圈是人们在北半球大约北纬66度的地方假想出的一条线.
1
A castle is a large building with thick,high walls.Castles were built by important people,such as kings,in former times,especially for protection during wars and battles.
城堡是一幢有着高墙厚壁的建筑.城堡由一些重要任务建造,例如国王.古时候主要是用来在战争中起保护作用.
2
In chess,a castle is a piece that can be moved forwards,backwards,or sideways.
象棋中castle是能前后左右移动的一种棋子（车）.