周三徑一

周 = ⺆ + 土 + 口 : Mnemonic symbol: a hula hoop. James II of England (zh) performs in front of the outhouse (ou1): he swings a hula hoop (周), juggles three mandarins (口) and balances a small heap of dirt (土) on his head. He cheated a little bit though, because he stapled the heap of dirt to his wig with a stapler (⺆).

三 = 一 + 二 : Mnemonic symbol: Cartesian coordinate system with three (三) axes. Socrates (s-) is performing in front of the anthill (-an1). He created an electrical flute by attaching a large capacitor (二) to the flute (一), so that he can get the attention of all the people. Moreover, he's balancing on a Cartesian coordinate system (三). Unfortunately, only three (三) people stop to watch the performance.

径 = 圣 + 彳 : Father Christmas (圣) gives black sneakers (彳) to Joan of Arc (ji) in the engine's bathroom ((e)ng4). Joan of Arc happily puts her new shoes on instantaneously and circles father Christmas on a track (径) with a very small diameter (径), making father Christmas feel quite uncomfortable.

Maud Younger (y) forgot her keys to the space station (Ø1), all she brought outside was her flute (一). She has no choice but to crash the door with the giant flute.