中国剩余定理

• 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.

• 囗(surround; enclose)RADICAL
• 玉(precious jade; gem)ASSOCIATIVE

A nation is enclosed land that contains precious treasures within.

• 乘(ride; multiply)PHONO-SEMANTIC
• 刂(knife (radical))RADICAL

Using a knife to cut away after multiplying, what remains is the excess remainder.

• 人(person; human; man)RADICAL
• 余(surplus; remainder (person standing under roof with excess))ASSOCIATIVE

A person inside a house with surplus is like "I"—the one remaining after giving away.

• 宀(roof)RADICAL
• 疋(foot in right place; step correctly)PHONO-SEMANTIC

Under a roof with feet standing in the right place, everything is settled and secure.

• 王(jade; precious stone)RADICAL
• 里(village; mile)PHONO-SEMANTIC

Polishing rough jade layer by layer along the grain, like dividing the road mile by mile into neat sections.