急轉直下

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.

转 = 专 + 车 : In anthill, Julian Giant Squid drives a car to transfer a drink from the bar to the scientist's table.

直 = 十 + 目 + 一 : Mnemonic symbol: someone straight edge. James II of England (zh) decided to go straight edge (直) in the space station's kitchen (Ø2), and he also decided that this means he won't listen to music anymore. The Eye of Providence (目) promptly plays some music on its flute (一) to tease him, whereupon the James II of England defends himself by holding up a cross (十).

下 = 一 + 卜 : Mnemonic symbol: from the up/down logic, and a little bit the shape of the character, a ladder.

Xi Shi (xi) is on a retreat in the ashram. Using a voodoo staff (卜), she divined that next (下) week she'll have to play the flute (一) sixteen hours per day. Because she hates playing the flute, she climbs over the ashram's bathroom (a4) wall using a ladder (下) to escape.