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;
例句:
Hold the upper back and neck in an erect position to give support for the head.
挺直上背部和脖子来支撑头部。
Stand reasonably erect, your arms hanging naturally.
挺身站直,双臂自然下垂。
Hold your head erect.
把头挺直.