词典释义：
释义
n.
an object or feature of a landscape or town that is easily seen and recognized from a distance, especially one that enables someone to establish their location
地标，标志性建筑
-
the spire was once a landmark for ships sailing up the river .塔尖曾是河上航船的陆标。
〈北美〉 有历史意义的建筑；有历史意义的纪念碑。
〈史〉 边界；界碑。
an event, discovery, or change marking an important stage or turning point in something
里程碑（指有划时代意义的重大事件，或转折点）；有重大意义的事情
-
the birth of a child is an important landmark in the lives of all concerned 一个孩子的出生是所有与此有关者的人生大事
-
[as modifier]
a landmark decision .有划时代意义的决定。