| 单词 | spiral |
| 释义 | spiral 5 ENTRIES FOUND: plural spirals plural spirals Learner's definition of SPIRAL [count] 1 : a circular curving line that goes around a central point while getting closer to or farther away from it螺旋曲线；螺旋形
2 : a situation in which something continuously increases, decreases, or gets worse持续加剧的上升（或下降、恶化） — usually singular通常用单数
3 American football : a kick or throw in which the ball spins while moving through the air旋球
2 spiral /ˈspaɪrəl/ verb spirals US spiraled or British spiralled US spiraling or British spiralling 2 spiral /ˈspaɪrəl/ verb spirals US spiraled or British spiralled US spiraling or British spiralling Learner's definition of SPIRAL [no object] 1 always followed by an adverb or preposition : to move in a circle around a central point while getting closer to or farther away from it : to move in a spiral螺旋式行进；盘旋
2 : to greatly increase, decrease, or get worse in a continuous and usually fast and uncontrolled way快速而失控地上升（或下降、恶化）
3 spiral /ˈspaɪrəl/ adjective 3 spiral /ˈspaɪrəl/ adjective Learner's definition of SPIRAL always used before a noun : winding or circling around a central point and usually getting closer to or farther away from it : shaped or moving like a spiral螺旋的；螺旋形的；螺旋式的
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