传输层

• 亻(person; man; human)RADICAL
• 专(specialized; dedicated)PHONETIC

A person who transmits knowledge must dedicate themselves to passing it on to others.

• 車(vehicle; cart; wheel)RADICAL
• 俞(agree; transport)PHONETIC

A cargo vehicle traveling everywhere represents the image of transportation and delivery.

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

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