墙外
4.Brothers quarrelling at home join forces against attacks. (或:Internal disunity dissolves at the threat of external invasion.)
9.The moon was sailing higher and higher up the heavens, the sound of childish laughter had died away from the lane beyond our wall, and my wife was in the house patting Juner and humming a lullaby to him.
10.The Imperial Palace (the Forbidden City) in Beijing is the world's largest royal palace, covering an area of 720000 square metres, with a floor space of 150,000 square metres, and a moat of 12 metres in width. It's construction started in 1406 and was completed in 1420.


