发动力

• 弓(bow; archer)RADICAL
• 癶(two legs step out)ASSOCIATIVE
• 又(right hand)ASSOCIATIVE

A hand drawing a bow with two legs stepping forward is the action of 'shooting' an arrow.

• 云(cloud)PHONETIC
• 力(strength; power)RADICAL

Powerful strength like rolling clouds surge creates motion.

• 力(strength; muscle)ASSOCIATIVE

The character 力 depicts a flexed arm muscle, symbolizing strength and power.