形容词
1. (花费等)极其昂贵的，贵得离谱的
If you describe the cost of something as ruinous, you mean that it costs far more money than you can afford or than is reasonable.
1. causing injury or blight
especially affecting with sudden violence or plague or ruin
e.g. the blasting effects of the intense cold on the budding fruit
the blasting force of the wind blowing sharp needles of sleet in our faces
a ruinous war
Synonym: blasting
2. extremely harmful
bringing physical or financial ruin
e.g. a catastrophic depression
catastrophic illness
a ruinous course of action
Synonym: catastrophic