erect [ɪˈrekt]

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vt.树立，建立，使竖立；vi.直立；勃起；adj.直立的，垂直的

to build a building , wall or other structure

She held her head erect and her back straight. 她昂着头，把背挺得笔直。
Soldiers are trained to stand erect. 士兵们训练站得笔直。