spiral
/ˈspaɪɹəl/ 名词 C1中文： 螺线、螺旋
- A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point.
- A helix.
- A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once.
- A section of track that forms a circle and crosses over itself, used for gaining height in mountainous territory.
复数 spirals
短语动词和表达
来自图书馆
But these forces increase as we go higher, so that we have a spiral which in defiance of reason rests upon the apex and not on the base.
She grabbed a heavy brass key and marched up the winding spiral staircase.
其他匹配结果
在真实文章中学习spiral
注册免费账号后，在图书馆中把鼠标悬停在任何单词上即可看到意思，还能听朗读、收藏单词并按你的记忆安排复习，看到每本书你已经认识多少。