[] something that indicates what may happen or what is happening路标◆Investors know that past performance is no guide to future returns.投资者知道过去的业绩并非指向未来的回报。something that helps you to form an opinion or make a decision有指导意义的事物；指导的事物◆These figures are just a rough guide.这些只是大致的数字。➡guideline a book or document which tells you about sth指南◆a restaurant/hotel/city guide餐厅／旅馆／城市指南◆You can download the site's 10-step guide to investing.可以从这个网站下载投资 10 步指南。