重弹

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.

弹 = 单 + 弓 : Don Quixote (d) is preparing a bullet (弹) list in the anthill's bathroom (an4), but he took the term a little too literally. To create the bullet points on his list (单), he is trying to shoot bullets (弹) at the list using a composite bow (弓).

弹 = 单 + 弓 : Tecumseh (t) is giving a concert in the anthill's kitchen (an2). He is playing a composite bow (弓) with just a single string. As he is plucking (弹) the string (弹) of his bow, he often looks at the floor where he taped a list (单) of songs to play so that he doesn't forget which song is next.