摩托车的士

• 扌(hand)RADICAL
• 乇(rely on; entrust)PHONO-SEMANTIC

Hand supporting something up represents entrusting or relying on another person.

• 車(vehicle; chariot)ASSOCIATIVE

The character 車 is an ancient picture of a vehicle viewed from above, showing its axle and wheels.

• 白(white; bright)RADICAL
• 勺(spoon)PHONETIC

A spoon catching sunlight shines brightly and clearly — the character means "of" or shows clarity and definiteness.