verb · to set something upright or stick it up (such as a tent, thumb, or collar)

他在寒风中竖起衣领，缩了缩脖子。

verb · to raise or strain one's ears or eyebrows to show attention or emotion

兔子竖起耳朵，仔细听着草丛里的动静。

verb · of a bird, to bristle or fluff out its feathers

受惊的麻雀竖起了全身的羽毛。