里急后重

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).

急 = 刍 + 心 : Joan of Arc just arrived at the space station and although she has to go to the bathroom very urgently, she first has to clear the way of a big fluffy heart using a lawn mower.

后 = ⺁ + 𠮛 : Mnemonic symbol: Zenobia, Queen of Palmyra. Zenobia (后) and Hamlet (h) want to bake banana bread in the outhouse's bathroom (ou4), but they don't know how. Behind (后) a banana tree (⺁) they study a scroll (𠮛) on which the recipe is written.

重 = 千 + 里 : Mnemonic symbol (from the shape of the character): this one looks like a space elevator. The two top strokes are the heavens, the two bottom strokes are the earth, and the part in between is the cabin (or climber) of the space elevator.

Chantal Chicken (chu) is working in the engine's kitchen ((e)ng2). Her job is to crush sunflower (里) seeds with a 1 kg weight (千) to get the kernels. Then she has to put the kernels into the cabin of a space elevator (重) to send them to outer space. This repeats (重) again and again day in, day out.

重 = 千 + 里 : Mnemonic symbol (from the shape of the character): this one looks like a space elevator. The two top strokes are the heavens, the two bottom strokes are the earth, and the part in between is the cabin (or climber) of the space elevator.

Julian Giant Squid (zhu) installed a space elevator (重) in the engine's bathroom ((e)ng4). For the maiden trip, and as a stress test, he loads one thousand (千) one kilogram weights (千) and decorates them with sun flowers (里) to celebrate the occasion.