资优生

资 = 次 + 贝 : Zorro (z) has become a real capitalist (资). In front of the space station (Ø1) he locked a crab (贝) into a cube (次). Whenever he throws organic waste into the cube, the crab is so furious that it cuts the carbage to really small pieces and throws it out. Zorro then collects the cut garbage and sells it as organic fertilizer.

优 = 亻 + 尤 : Rosa Luxemburg (亻) and Maud Younger (y) are awarding each other medals (尤) for being superior (优) than the rest of the world in front of the outhouse (ou1).

优 = 亻 + 尤 : A disabled man is lying on the streets, his crutches nearby. He's blaming (尤) everyone for not helping him. Finally, a man (亻) of excellent reputation comes to his aid.

生 = 牛 + 一 : Mnemonic symbol: a cradle.

Sherlock Holmes (sh) comforts a crying baby bull (牛) in a cradle (生) in front of the engine ((e)ng1) and plays him a tune on a flute (一).