1.They get our oil and give us a worthless piece of paper, he said. We all know that the US dollar has no economic value.
他们得到我们的石油，却给我们一张毫无价值的纸，他表示。我们都知道美元没有经济价值。
2.When the craze is over , some hapless investor will be left with a worthless piece of property .
当狂热过去，一些倒霉的投资者将会剩下一块分文不值的地皮。