难于接近

难 = 又 + 隹 : Mnemonic symbol: a video game which is almost impossible to beat.

难 = 又 + 隹 : Just inside the anthill's kitchen, Napoleon and a sparrow are trying to beat an insanely difficult video game. After playing and failing all day long Napoleon finally loses his temper and crashes the game wearing two boxing gloves.

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.

接 = 妾 + 扌 : In front of the elevator, Joan of Arc's mobile phone is ringing, but she can't take the call because she has toy claws on both hands. The concubine comes to her help and takes over of answering the phone.

近 = 斤 + 辶 : Joan of Arc (ji) tries to lift two very heavy bar bells (斤) in the encampment's bathroom ((e)n4) while wearing gladiator sandals (辶). She cannot lift them even a little bit though; the bar bells are always very close (斤) to her gladiator sandals.