at all costs; at any cost; not spare labour or money; regardless of coat;spare neither labour nor money; spare no expense
❍ 是谁至今还～继续支持那个摇摇欲坠的政府？ Who up to now is sparing no expense to prop up the tottering government?
不惜工本bù xī ɡōnɡ běn
惜：吝惜；工本：指制造某物所需的成本。不吝惜成本。at any cost,spare neither labour nor money, regardless of cost, spare no expense