n. 拱顶, 窖, 地下室, 撑竿跳, 穹窿
vt. 做成圆拱形, 撑竿跳过
vi. 成穹状弯曲, 跳跃
英文释义
n. a burial chamber (usually underground)
n. a strongroom or compartment (often made of steel) for safekeeping of valuables
n. an arched brick or stone ceiling or roof
n. the act of jumping over an obstacle