记工员

记 = 己 + 讠 : In the space station's bathroom, Joan of Arc sees an advertisement on an advertising column. There are some butcher's hooks advertised which she thinks will be useful on her quest against the king of England, so she takes a voice memo to remind herself to obtain some of the butcher's hooks.

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam.

Gitta Giraffe (gu) is working a shift in front of the engine ((e)ng1). Her job is to melt dinosaur bones (丨) so that they can be disposed off easily. To melt the bones, she is shorting a huge capacitor (二) with a steel beam (工) which consequently heats up to a bright glow. Using the glowing hot steel beam she can melt the dinosaur bone easily.

员 = 口 + 贝 : Mnemonic symbol from 服务员, a waiter.

员 = 口 + 贝 : Yu the Great and a crab are having dinner just inside the anthill's kitchen. They ordered mandarins, and the waiter serves them.