讯框中继

• 木(wood; tree)RADICAL
• 匡(basket; bend; shape)PHONETIC

A wooden frame made of wood has the sound 'khuông' that evokes its square, sturdy shape.

• 口(mouth; rectangular frame)ASSOCIATIVE
• 丨(vertical line through the middle; axis)ASSOCIATIVE

An arrow hitting the center of a target frame is the bull's-eye—that's CENTER.

• 糹(silk thread; silk fiber)RADICAL
• 㡭(connect; continue)PHONETIC

A thread being pulled continuously without breaking represents something continuing uninterrupted and connected.