land.mark
n.(名词)A prominent identifying feature of a landscape.陆标:用来显示景色特征的显著标记A fixed marker, such as a concrete block, that indicates a boundary line.界标:用来指示界限的固定标记,如一块大的水泥石柱An event marking an important stage of development or a turning point in history.里程碑:事物发展过程中重要阶段的事件或历史的转折点A building or site that has historical significance, especially one that is marked for preservation by a municipal or national government.纪念碑:具有历史意义的建筑物或场所,尤指那些被市政府或国家政府指定为保护对象的建筑物或处所adj.(形容词)Having great import or significance:有重大意义或影响的:例句:a landmark court ruling; a landmark decision.深具意义的法庭裁定;一项重大的决定