(of time or place) in; at; on / (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for / (indicating a source) from; out of / (used in comparison) than / (used in the passive voice) by
于
=
亅
+
二
:
Mnemonic symbol: prepositions (in, at, on, to, ...) are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.
Yu the Great (于) was assigned to repair the electronics of the space station's kitchen (Ø2), but instead he was snacking honey from a honey jar (于). Unfortunately his capacitor (二) got stuck in the honey and now he has to use a crowbar (亅) to lever it out.
洪
=
共
+
氵
:
engine is in danger of a great (洪) flood (洪)! In the kitchen ((e)ng2) Helga Horse (hu) and the communist (共) try to prevent the flood by scooping up water with water bottles (氵).
洪
=
共
+
氵
:
engine is in danger of a great (洪) flood (洪)! In the kitchen ((e)ng2) Helga Horse (hu) and the communist (共) try to prevent the flood by scooping up water with water bottles (氵).
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
:
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.