1. tou zi   merchandise   income   investment   revenue   Hint Half-n-half Clue   2. xiao shou   profits   sales   import   investment   Half-n-half Clue   3. xin jin   salary   income   purchase   import   Half-n-half Clue   4. shou zhi   salary   revenue   export   sales   Half-n-half Clue   5. xin shui   wage   production   sales   purchase   Half-n-half Clue   6. shi [chang;chang]   merchandise   market   purchase   production   Half-n-half Clue   7. shang pin   management   supplies   merchandise   import   Half-n-half Clue