| 释义 |
DEFINITIVE EXAMPLES 权威例句〔bearing〕The part of an arch or beam that rests on a support.支架：搁在支撑物上的拱架或梁的一部分美国传统〔impost〕The uppermost part of a column or pillar supporting an arch.拱墩：支撑拱架的圆柱或者柱子的顶端部分美国传统〔soffit〕The underside of a structural component, such as a beam, an arch, a staircase, or a cornice.拱腹：结构组成部分，如横梁、拱架、楼梯或飞檐的底面美国传统 |