虹口区

虹 = 工 + 虫 : Helga Horse (hu) wants to decorate engine's entrance ((e)ng2) by putting a rainbow (虹) over it. Before she can install the rainbow she first has to set up a steel beam (工) as support though. Fortunately there is a very strong mosquito (虫) who helps her to set up the beam above the entrance.

Mnemonic symbol: 口 shall be represented by a mandarin. Karl Marx (k-) is enjoying a mandarin in the outhouse's living room (ou3).

區 = 匚 + 品 : Cupid receives a metal box in front of the space station. He opens it and finds a road sign with a pyramid on it. Clever as he is, he derives that it must have been sent to him from the region of Egypt.

区 = 乂 + 匚 : Mnemonic symbol: An alien from Area 51.

区 = 乂 + 匚 : Cupid is chilling in front of the space station, when an alien from Area 51 flies by and gives him a metal box. Unfortunately, even using pliers, Cupid is too weak to open it.