The area by the citymoat, the suburbs and the broad grassland of the newly built residential areas in Beijing are all suitable for flying kites.
护城河边，郊区，北京新建的小区绿地面积也很大，都适合放风筝。
2
A fire on the city gate brings disaster to the fish in the moat.
城门失火，殃及池鱼。
《新英汉大辞典》
3
It's a rooftop bar at the boutique Emperor Hotel that opened a few months ago just outside the east gate of the Forbidden City, a stone's throw from the moat.