1、They made a returnless investment in the company, hoping for future profits.
他们在这家公司进行了无回报的投资，希望未来能获得利润。
2、The company has a strict returnless policy, and once a product is purchased, it cannot be returned.
该公司有着严格的不退回的政策，一旦购买了商品就无法退货。