vt.使直立，使竖起，建立，创立，安装，[医]使勃起
adj.直立的，垂直的，（头、手等）朝上举的，直竖的，[医]勃起的
Stand reasonably erect, your arms hanging naturally.
挺身站直，双臂自然下垂。
Her legs were long and fine, her hips slender, her carriage erect.
她长腿细臀，身姿笔直。
He has a military bearing, never failing to carry himself erect.
他有一种军人的风姿，身板总是挺得笔直。
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