adj.毁灭性的，灾难性的，破坏性的，破败的，耗资巨大的，无法承担的，导致严重问题的，严重受损的，已成废墟的

The rain is ruinous to the trees.
雨对这些树危害极大。
The cost of his ransom might be ruinous.
他的赎金可能会高得致人破产。
Eric went to the money lenders and borrowed on ruinous terms.
埃里克去跟放高利贷的人借钱，订了使他破产的契约。
The company's finances were in a ruinous state after years of mismanagement.
公司的财务状况在多年管理不善后变得岌岌可危。
His gambling addiction led him down a ruinous path, costing him his family and career.
他的赌博成瘾使他走上了毁灭性的道路，让他失去了家庭和事业。
The prolonged drought had a ruinous effect on the region's agriculture, causing widespread famine.
长期的干旱对这个地区的农业产生了灾难性的影响，导致了大范围的饥荒。
The government's ruinous economic policies sparked widespread protests across the country.
政府的破坏性经济政策在全国引发了广泛的抗议活动。
The hurricane left a trail of ruinous destruction along the coastline, devastating homes and businesses.
飓风在沿海地区留下了一片毁灭性的破坏，房屋和商业设施都被摧毁。
Engaging in a price war with competitors can be ruinous for small businesses with limited resources.
与竞争对手进行价格战对于资源有限的小企业来说可能是灾难性的。
The CEO's reckless decisions brought about a ruinous decline in the company's market share.
CEO的鲁莽决策导致公司市场份额急剧下降，陷入困境。
The ancient castle, once majestic, now stands in ruinous disrepair after centuries of neglect.
这座曾经雄伟的古堡，在经历了几个世纪的忽视后，现在破败不堪。
The scandal involving the celebrity had ruinous consequences for their career and personal life.
涉及这位名人的丑闻对他们的职业生涯和个人生活产生了灾难性的影响。
The reckless spending habits of the previous administration left the country in a ruinous economic condition.
前任政府挥霍无度的习惯使国家陷入了经济崩溃的境地。