Cách sử dụng
The word 'ruinous' means something that causes destruction or damage, especially to something important or valuable. It can be used to describe a building or structure that is falling apart, or a situation or decision that has led to financial or personal disaster. So, for example, you might say "The hurricane was ruinous for the town, destroying homes, businesses, and infrastructure," or "His addiction to gambling proved to be ruinous for his family and finances."