身负重伤

身 = 自 + 丿 : Mnemonic symbol: a bodysuit.

Sherlock Holmes (sh) tries on his new bodysuit (身) in front of the encampment ((e)n1). To see himself better in his hand mirror (自), he uses a banana (丿) as a selfie stick.

负 = ⺈ + 贝 : Mnemonic symbol: an opossum (负鼠) who carries her babies on her back.

A few pals practice their cosplay on the space station's bathroom. They want to reenact the town musicians of Bremen, and so Frieda Fuchs stands at the bottom, the crab is on top of Frieda, the crane is on top of the crab, the opossum is on top of the crane, and the opossum carries her babies on her back.

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.

伤 = 亻 + 𠂉 + 力 : Sherlock Holmes hurt himself when he got struck by one of the traps in front of the anglepod. Luckily Rosa Luxemburg passes by: she has the key to unlock the power button of the trap system and turns it off, so that Sherlock can free himself.