adj.[建]拱(拱顶)的高度大于起拱线长度的一半的

动词surmount的过去式和过去分词形式.

A globe surmounted by a cross, used as a symbol of monarchial power and justice. 权球顶上装有一个十字架并象征着群权和公正的球

I think most of these obstacles can be surmounted. 我认为这些障碍大多数都是可以克服的。

Any of various similar constructions, especially a four-sided Mayan temple having stepped sides and a flat top surmounted by ceremonial chambers. 类金字塔一种相似建筑，尤指具有带台阶的侧面和布满礼仪性房间的平顶的四面玛雅族庙宇