内部网

• 冂(outer boundary; fence)RADICAL
• 入(enter; go in)ASSOCIATIVE

Inside a fence, something that has already gone in becomes what is enclosed.

• 咅(sound reading (radical/section))PHONETIC
• 阝(village; region)RADICAL

A section of land divided by distinct sounds becomes a region's administrative division.

• 糹(silk thread; filament)RADICAL
• 罔(net; without)PHONO-SEMANTIC

Silk threads woven together form a net to catch fish, just like a network that spreads everywhere.