1. 工資等級   on business   interest income   wage scale   profit margin   Hint Half-n-half Clue   2. 利潤率   to invest   share   profit margin   to sell   Half-n-half Clue   3. 產品   tax   product   company   to pay   Half-n-half Clue   4. 投資   sale   to invest   share   meeting   Half-n-half Clue   5. 銷售稅   wage scale   sales tax   to invest   factory   Half-n-half Clue   6. 稅   tax   share   business trip   factory   Half-n-half Clue   7. 買   profit margin   business card   to buy   to invest   Half-n-half Clue