adj.竖直的(安装的；建筑物)
An extremely stiff, erect posture. 过分笔直，僵立的姿态
Soldiers are trained to stand erect. 士兵们训练站得笔直。
She held her head erect and her back straight. 她昂着头，把背挺得笔直。
A monument to the national hero is erect here after the war. 战後在这儿竖起了民族英雄纪念碑。
A sudden drop from a relatively erect to a less erect position. 突然俯身低下从垂直方向上相对高的位置降到低的位置
Whenever he speaks with a lady, he would stand erect, cap in hand. 每当他与女士交谈时,他总是恭恭敬敬地站著。
