• 为…作掩护,对…负责

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1. A travel company used as a front for bringing dangerous drugs into the country.
   被利用作掩护把毒品带进那个国家的旅游公司。
2. A four-wheeled carriage with a collapsible top, two double seats inside opposite each other, and a box seat outside in front for the driver.
   四轮四座大马车带折叠篷的四轮马车，内有两个彼此相对的双人座位，外侧前部有供赶车人坐的包箱式座位
3. Her rudeness is just a front for her shyness.
   她色厉内荏。
4. The jewellery firm is just a front for their illegal trade in diamonds.
   该珠宝公司不过是进行非法的钻石交易的幌子。