spike

长钉, 鞋钉, 钉状物, 尖峰状物, 穗

a transient variation in voltage or current; sports equipment consisting of a sharp point on the sole of a shoe worn by athletes; (botany) an indeterminate inflorescence bearing sessile flowers on an unbranched axis; a sharp rise followed by a sharp decline

以大钉钉牢, 用尖物刺穿, 阻止, 弃置不用