基本解释vt.在…上做拱；成为 ... 的中心，在…中起决定作用vi.成拱形同根派生 overarch相关词英汉例句用作及物动词 (vt.)It was proved that the centre of the drop didn't overarch the water fall.早已证实出雨滴的中心物质并不构成降雨的真正原因。overarch更多例句