spike
noun [ C ]
UK /spaɪk/ US /spaɪk/
spike noun [C] (SHAPE)
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a narrow, thin shape with a sharp point at one end, or something, especially a piece of metal, with this shape
尖头，尖刺；（尤指金属的）尖状物
There were large spikes on top of the railings to stop people climbing over them.
栏杆顶端装着粗大的尖钉，防止有人攀越。
Some types of dinosaur had sharp spikes on their tails.
有些种类的恐龙尾部有锋利的尖突。