局限於

局 = 尸 + 乛 + 口 : Zeus (ju) got a job at the post office (局) just inside the space station's entrance (Ø2) and already at his first day a ghost (尸) approaches him. Zeus feels extremely threatened and tries to kill the ghost with a sickle (乛), but the sickle just cuts through the ghost. As the ghost is finally right in front of Zeus it produces a mandarin (口) which it wants sent to earth.

局 = 尸 + 乛 + 口 : Zeus (ju) got a job at the post office (局) just inside the space station's entrance (Ø2) and already at his first day a ghost (尸) approaches him. Zeus feels extremely threatened and tries to kill the ghost with a sickle (乛), but the sickle just cuts through the ghost. As the ghost is finally right in front of Zeus it produces a mandarin (口) which it wants sent to earth.

限 = 艮 + 阝 : Marie Curie (xi) caught the pope (阝) munching chewing gum (艮) in the anthill's bathroom (an4). Marie hates it when someone puts their chewing gum just anywhere in the room, so she marks a confined space with red and white tape and sends the pope to stay within the limits (限) while he is chewing.

于 = 亅 + 二 : Mnemonic symbol: prepositions are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.

Yu the Great was assigned to repair the electrics of the space station's entrance, but instead she was snacking some honey from a honey jar. Now her capacitor got stuck in the honey and she has to use a crowbar to lever it out.