剩余放射性

• 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.

• 方(direction; square)PHONO-SEMANTIC
• 攵(hand holding striking stick; strike with a stick)RADICAL

Use a stick to chase and drive away in all directions to release and liberate.

• 身(body; self)ASSOCIATIVE
• 寸(inch; hand; grasp)PHONO-SEMANTIC

A hand (寸) raising the body (身) to shoot an arrow is the action of archery.

• 忄(heart; mind)RADICAL
• 生(be born; live)PHONO-SEMANTIC

Nature is something that is born together with the heart of each person.