让我们估测经销商的宣传单的派发成本是每个传单 $3，延保为经销商带来了 $400 的利润。
Let's estimate that the flier the dealership sends out cost $3 each and that the extended warranty brings in $400 profit for the dealer.
传单：通常是印单面、人手派发的宣传单张。
Handbill: Publicity sheet, normally printed on one side only, for delivery by hand.
不可派发与升学课程无关的宣传单张。
Promotional leaflets which are not related to graduate study are not allowed to circulate.
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