n. 垂直线, 垂直的位置, 直立(姿势), 刚正, 垂规

a. 垂直的, 直立的, 陡峭的

n. a straight line at right angles to another line

n. a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting

n. an extremely steep face