1·The boy bears himself erectly.
这男孩站得蜿蜒。
2·She sat erectly and folded her hands on her black skirt.
她端坐着，双手放在她的黑裙子上。
3·Vines are a group of plant that cannot stand erectly by themselves; they need to draw support from other plant or backstop to grow upwardly.
藤本植物是指不能自由直立生长，需要借助于其他植物或支撑物的支持才能向上生长的植物的总称。