名词
中文翻译：螺旋
同义词：
['serpentine', 'coiled例句：1. The spiral staircase leads up to the second floor.（螺旋楼梯通往二楼。）2. The snake was coiled around the tree.（蛇缠绕在树上。）']
例句：
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1. The spiral staircase leads up to the second floor.
螺旋楼梯通往二楼。
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2. The snake was coiled around the tree.
蛇缠绕在树上。
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3.The car's engine is a spiralgearbox.
汽车的引擎是一个螺旋齿轮箱。