to introduce / to lie between / between / shell / armor
介
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人
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丿
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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).
绍
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召
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纟
:
When Sherlock Holmes (sh) was in the middle of taking a shower in the aorta's bathroom (ao4), the water suddenly stopped an he was unable to continue (绍). Now he wants to call the janitor over the intercom (召), but the connection is very slow. It is because inside of the intercom sits a very small silk worm (纟) which listens to Sherlock Holmes and then carries on (绍) the message to the next relay point.