萬里長城

万 = 丆 + ㇆ : As mnemonic symbol I choose a neuron, since each neuron is said to connect to 10000 others.

万 = 丆 + ㇆ : Willy Walrus needs to dig up the floor in the anthill's bathroom, but he is tired of doing so manually with a plough. To make his life easier, he sets up a wind wheel for electricity, connects a neuron to the wind wheel and the plough to transmit the electricity and uses his new DIY electric plough to dig much faster.

里 = 土 + 田 : Mnemonic symbol: a sunflower. The 田 part looks like the blossom and 土 looks like the stem and leaves. Li Qingzhao (li) wants to put up a field (田) inside (里) the space station's living room (Ø3). First she puts some earth (土) here and there, and then she plants lots of sunflowers (里).

长 = 乛 + 丆 + 丿 : Charlie Chaplin sped into the anglepod riding his longboard, but in the kitchen he doesn't know how to stop. He manages to make a u-turn by hooking him to the pole of a wind wheel with a sickle, but after the turn he can't help but bump into a giant banana.

长 = 乛 + 丆 + 丿 : The chief (长) is asking James II of England (zh) for help, because his wind wheel (丆) in the anglepod's living room (丆) isn't performing very well. After finding out that there's too much friction, James II of England uses a sickle (乛) to cut open a banana (丿) and uses the pulp to grease the wind wheel and enhance (长) its performance.

城 = 土 + 成 : Again Charlie Chaplin is unable to exit engine. There is a wall of dirt blocking the entrance, and a progress bar showing that it will be removed soon, but the bar seems to be stuck.