提高吸烟的社会耻辱，以及对香烟征收高额税收，都有助于遏制吸烟行为。
Raising the social stigma against smoking helped to curb the practice, as did higher taxes on cigarettes.
德国政客向选民保证欧元不会导致财政联盟或是税收增加，但是帮助希腊的行为把问题都摆到了桌面上。
German politicians promised their voters that the euro would never lead to fiscal union or tax increases, yet aid to Greece would put those issues on the table.
税率的变动改变了人们的行为，而行为的改变反过来也影响着应税收入。
Changing tax rates changed behavior, and changed behavior affected tax revenues.
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