a percentage (of winnings or loot or profit) taken by an operator or gangster
同义词：rake-off??/??vigorish
take money from an illegal transaction
For its services, Express Scripts rakes off a small percentage of the value of each prescription filled, plus, in many cases, a piece of the discounts it negotiates from drug manufacturers.
FORBES: Script doctor
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。