外卖员

• 夕(evening; crescent moon (pictographic))RADICAL
• 卜(divination; fortune-telling)PHONETIC

Evening outside divining fortunes under the moon — that's an external affair.

• 十(ten; many)ASSOCIATIVE
• 买(buy; purchase)PHONO-SEMANTIC

Selling is buying and then multiplying many times over to make a profit.

• 口(mouth; opening)RADICAL
• 贝(shell; money)ASSOCIATIVE

A person in an organization uses their mouth to discuss money matters.