Old English landmearc, from land (n.) + mearc (see mark (n.1)). Originally "object set up to mark the boundaries of a kingdom, estate, etc.;" general sense of "conspicuous object in a landscape" is from 1560s. Modern figurative sense of "event, etc., considered a high point in history" is from 1859.
权威例句
1. The Ambassador Hotel is a Los Angeles landmark.
国宾大饭店是洛杉矶的地标性建筑之一。
2. The Empire State Building is a familiar landmark on the New York skyline.
帝国大厦是人们熟悉的纽约高楼大厦中的地标。
3. The Russian Revolution represents a landmark in world history.