at the cost ofat the expense of 以…为代价；以…为牺牲 * He succeeded only at the cost of his health. 他成功了，但身体却垮了。 * He saved the lives of his friends at the cost of his own. 他牺牲自己而挽救了朋友的生命。at the cost of以……为代价：That shrewd businessman made some money in speculations but at the cost of his reputation.那个精明的商人在投机中赚了一些钱但却丧失了他的信誉。 |