“说得好。”鹰形门环说，门一下子打开了。
"Nicely phrased," replied the eagle door knocker, and the door swung open.
利用圆形和长方形画一棵树，或者画一座有着三角形屋顶和长方形门的正方形房子。
Draw a tree using a circle and a rectangle, or a house using squares with a triangle roof and rectangle door.
每个房间后面都有一个55加仑的鼓形炉，前面有一个门，后面有个带两个管道的烟囱洞。
Behind each chamber is a 55-gallon-drum stove with a door on the front and a chimney hole with two pipes in the back.
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