〈非正式,主北美〉 (无药效但以医百病为卖点的)蛇油,万灵药
-
some kelp products are snake oil, but the good ones promote plant growth 有些海藻产品是并无药效的万灵药,但有些品质好的确能促进植物生长
-
figurative 〈喻〉the president's foreign policy is snake oil. 总统的外交政策是空话、废话。