spiral
美[ˈspaɪrəl] v.使成螺旋形；螺旋式的上升（或下降盘旋上升（或下降）
adj.螺旋形的；盘旋的；盘旋上升的
网络螺旋；螺线；螺旋形的；螺旋的
1 . The process is not a circle but rather a spiral .
这个过程不是一个圆周运动而是螺旋上升型的。
来自柯林斯例句
2 . The spiral of terrorism becomes never-ending.
恐怖主义活动没完没了，不断升级。
来自柯林斯例句
3 . The birds circled in a slow spiral above the house.
鸟儿在房子上空缓缓盘旋。
来自《权威词典》
4 . Her hair was styled into a cascade of spiral curls.
她的头发被做成了瀑布般的螺旋形鬈发.
来自《简明英汉词典》
5 . Their profits began to spiral down disastrously.
他们的利润开始螺旋形地急剧下降.
来自《简明英汉词典》
1.a plane curve traced by a point circling about the center but at ever-greater distances from it
2.a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
3.ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center
4.a structure consisting of something wound in a continuous series of loops;
a coil of rope
5.flying downward in a helical path with a large radius
6.in the shape of a coil
1.to wind or move in a spiral course;
the muscles and nerves of his fine drawn body were coiling for action
2.form a spiral;
The path spirals up the mountain
3.move in a spiral or zigzag course
《推理之绊》（日语：スパイラル～推理の绊～），原是日本的漫画，后来推出电视动画以及小说，drama CD，画集等衍生作品。由于动画版结束时漫画还未连载完毕，所以动画版以原创故事收尾。其前传漫画《推理之绊- 螺旋重现》(スパイラル·アライヴ)亦已连载完毕，为整个系列画下了休止符。