中日韩越

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.

日 = 囗 + 一 : Robinson Crusoe (r) is hiding from the sun (日) in an enclosure (囗) full of flutes (一) in the space station's bathroom (Ø4).

韩 = 十 + 早 + 韦 : Hamlet (h) is playing a game in the anthill's kitchen (an2). He has a cross (十) in his hands (which are protected by soft leather gloves (韦)), and an alarm clock (早) will give him three minutes to crush as many alien critters from Korea (韩) as he can.

越 = 戉 + 走 : Yu the Great is extremely mad at all the Nordic walkers in the elevator's bathroom. With a battle-axe, he chops Nordic walking poles into small pieces. The more he chops, the smaller the pieces get.