电离层

• 曰(speak; bright cloud)ASSOCIATIVE
• 乚(lightning bolt; hook stroke (downward))ASSOCIATIVE

A flash of lightning bursts bright through the clouds—that is electricity itself!

• 亠(lid; cover (upper part))ASSOCIATIVE
• 凶(ominous; perilous)PHONETIC
• 禸(footprint; animal track)ASSOCIATIVE

An animal trapped under a dangerous roof struggles with all its might to break free and escape.

• 尸(corpse; roof (covering))RADICAL
• 云(cloud)PHONETIC

Layers of houses stacked on top of each other like tiered clouds beneath a roof.