1. 牙医   dentist   employee   chef   electrician   Hint Half-n-half Clue   2. 干事   bus driver   clerk   steward   optician   Half-n-half Clue   3. 精神病医生   chef   programmer   psychiatrist   counsellor   Half-n-half Clue   4. 银行家   banker   football player, soccer player   coach   broker   Half-n-half Clue   5. 电工   basketball player   electrician   optician   police   Half-n-half Clue   6. 消防员   biologist   manager   football player, soccer player   fireman   Half-n-half Clue   7. 经济学家   broker   economist   counsellor   psychiatrist   Half-n-half Clue