第三产业

• ⺮(bamboo)RADICAL
• 弟(younger brother; order)PHONO-SEMANTIC

Ancient people used bamboo slips to mark order, like arranging siblings by rank and role.

• 一(one; horizontal stroke)ASSOCIATIVE
• 二(two (pictograph – two horizontal strokes))ASSOCIATIVE

Three horizontal strokes stacked on top of each other symbolize the number three.

• 亠(roof; top part)RADICAL
• 丷(two small strokes; sprout)ASSOCIATIVE
• 厂(rock wall; place of production)ASSOCIATIVE

Under a roof and rock wall, sprouts burst forth—that is how vegetable growth is produced.

• 業(work; career; undertaking)ASSOCIATIVE

A wooden rack for hanging musical instruments evolved to mean profession or work.