Either of the sides of an arch, curving down from the apex to an impost.
梁腋, 拱腋拱门上任意一个从拱顶到拱墩间的部分
A slight curving or circular movement in a stem, as of a twining plant, caused by irregular growth rates of different parts.
转头运动植物茎的轻微弯曲或扭转的生长, 象双生树那样, 由不同部分的不规则生长速度引起
Slanting or curving upward; ascending.
向上的向上倾斜或弯曲; 上升
