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1. Oxford Dictionary

   spiral

   • IPA[ˈspʌɪrəl]

   英式

   • adj.
     winding in a continuous and gradually widening (or tightening) curve, either round a central point on a flat plane or about an axis so as to form a cone；winding in a continuous curve of constant diameter about a central axis, as though along a cylinder; helical.
   • n.
     a spiral curve, shape, pattern, or object；short for spiral galaxy
   • v.
     move in a spiral course；cause to have a spiral shape or follow a spiral course

   • verb: spiral, 3rd person present: spirals, gerund or present participle: spiralling, past tense: spiralled, past participle: spiralled

   • noun: spiral, plural noun: spirals

2. • 釋義

   adj.

   形容詞

   • 1. winding in a continuous and gradually widening (or tightening) curve, either round a central point on a flat plane or about an axis so as to form a cone a spiral pattern
   • ▪ winding in a continuous curve of constant diameter about a central axis, as though along a cylinder; helical.
   • ▪ (of a stairway) constantly turning in one direction as it rises, round a solid or open centre a wrought-iron spiral staircase
   • ▪ (of a fracture) curving round a long bone lengthwise.
   • ▪ short for spiral-bound

   n.

   名詞

   • 1. a spiral curve, shape, pattern, or object a spiral of smoke
   • ▪ short for spiral galaxy
   • 2. a progressive rise or fall of prices, wages, etc., each responding to an upward or downward stimulus provided by a previous one an inflationary spiral
   • ▪ a process of deterioration through the continuous increase or decrease of a specified feature this spiral of deprivation and environmental degradation

   v.

   動詞

   • 1. move in a spiral course a wisp of smoke spiralled up from the trees 同義詞 coil, wind, twirl, swirl, twist, ... 更多wreathe, snake, gyrate
   • ▪ cause to have a spiral shape or follow a spiral course spiral the bandage round the limb 同義詞 coil, wind, twirl, swirl, twist, ... 更多wreathe, snake, gyrate
   • 2. show a continuous and dramatic increase inflation continued to spiral 同義詞 soar, shoot up, rocket, increase rapidly, rise rapidly, ... 更多leap up, escalate, climb, mount, informalskyrocket, go through the ceiling, go through the roof反義詞 fall
   • ▪ decrease or deteriorate continuously he expects the figures to spiral down further 同義詞 deteriorate, decline, degenerate, worsen, get worse, ... 更多informalgo downhill, take a nosedive, go to pot, go to the dogs, hit the skids, go down the toilet, go down the tubes反義詞 improve