输送媒介

输 = 俞 + 车 : Sheldon Shrimp (shu) wanted to go on a trip with Yu Xiulian (俞) in their space cabriolet (车), but in front of the space station (Ø1) Sheldon entered (输) the wrong password three times in a row and now they're locked out of their car.

送 = 关 + 辶 : Mnemonic symbol: a delivery girl.

Inside of the engine's bathroom, the delivery girl gave a parcel to Susan Saint Bernard in passing since she can't stop her new electrical gladiator sandals. Susan Saint Bernard recognizes her demise and uses her spider-superpowers to push the off button of her sandals so that she can rest for a while.

媒 = 女 + 某 : Mahatma Gandhi (m) hired a match-maker (媒) to find a wife for him. The match-maker finally found Bessy Coleman (女), and for their wedding just inside the Eiffel Tower's kitchen (ei2) the match-maker plays "somewhere over the rainbow" on her ukulele (某) for them.

介 = 人 + 丿 + 丨 : Mnemonic symbol: 介 looks like a rocket 🚀. Neanderthal Man (人) and Joan of Arc (ji) are preparing a rocket (介) for its start. Between (介) the layers of the outer shell (介) they are stuffing bananas (丿) and dinosaur bones (丨).