二尖瓣狹窄

二 = 一 : Mnemonic symbol: a capacitor, because the two strokes remind me of the symbol in electrical drawings. Albert Einstein (Ø) is experimenting with a capacitor (二) in the space station's bathroom (Ø4). He finds that it's uncomfortable to discharge a capacitor using two flutes (一).

尖 = 大 + 小 : The robot (大) picked up a daisy (小) for Joan of Arc (ji) and gives it to her in front of the anthill (an1). He cut the daisy so sharply though that the Joan of Arc pricks her hand on the sharp (尖) end.

瓣 = 瓜 + 辡 : Beelzebub (b) is preparing a fake melon (瓜) in the anthill's bathroom (an4) to prank random people. He hollowed the melon and filled it with two vases of kimchi (辡) as well as a lot of garlic cloves (瓣).

狭 = 夹 + 犭 : Marie Curie (xi) made herself a sandwich (夹) in the ashram's kitchen (a2), but the way out is very narrow (狭) and blocked by the dachshund (犭) who is looking at her sandwich and drooling .

窄 = 乍 + 穴 : Mnemonic symbol: a narrow slit of some kind. James II of England (zh) is painting cave paintings (穴) on the walls of the airplane's living room (ai3). He is using a special technique: he pushes the hair of his Mohawk haircut (乍) through a narrow slit (窄) so that when he applies the paint to his hair (to use it as a brush) he doesn't accidentally paint his face.