重覆性

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.

覆 = 復 + 覀 : Frieda Fox (fu) wants to use the shrine of rejuvenation (復) in the space station's bathroom (Ø4), but someone has been using it for one hundred years already. First, Frieda uses knuckle dusters (覀) to knock the person over the head, but as he doesn't wake up Frieda looses her patience completely and just overthrows (覆) the whole shrine, throwing out the person.

覆 = 復 + 覀 : Frieda Fox (fu) wants to use the shrine of rejuvenation (復) in the space station's bathroom (Ø4), but someone has been using it for one hundred years already. First, Frieda uses knuckle dusters (覀) to knock the person over the head, but as he doesn't wake up Frieda looses her patience completely and just overthrows (覆) the whole shrine, throwing out the person.

性 = 忄 + 生 : Marie Curie had a strong character since she was little. Even in her cradle in the engine's bathroom she was only playing with a flail.