1
a spike in [something]
这里spike表示图表上的尖峰，引申为价格或数量的突然激增，后接in引出领域。
The graph shows a sharp spike in gas prices.
图表显示天然气价格急剧飙升。
尖铁条；尖头；尖桩
先理解核心含义，再看它在真实句子里的用法。
尖铁条；尖头；尖桩
A sharp, pointed piece of metal that is fixed with its point upward or outward.
The graph shows a sharp spike in gas prices.
图表显示天然气价格急剧飙升。
常指栅栏、栏杆或围墙顶部的铁尖
一种非常大的钉子
A sort of very large nail.
电压或电流的瞬时变化
a transient variation in voltage or current
向上或向外设置尖端的金属等尖物
A piece of pointed metal etc. set with points upward or outward.
运动员鞋底上的尖锐点的运动器材
sports equipment consisting of a sharp point on the sole of a shoe worn by athletes
Be careful—that metal spike is sticking out of the crate.
小心——那只箱子外面伸出一根金属尖刺。
AI contextual example
The fence has long spikes on top to stop people from climbing over.
栅栏顶部有长长的尖刺，防止人们翻越。
AI contextual example
A spike from the broken railing tore his sleeve.
破损栏杆上的一根尖刺划破了他的袖子。
AI contextual example
spikes provide greater traction
鞋钉提供更大的抓地力
WordNet
这里spike表示图表上的尖峰，引申为价格或数量的突然激增，后接in引出领域。
The graph shows a sharp spike in gas prices.
图表显示天然气价格急剧飙升。
spike指放文件的长钉，put sth on the spike是新闻报道中的习语，表示弃用或搁置稿件。
The editor put the rejected article on the spike.
编辑把被退的稿件放到了长钉上。
Not this
The report showed a spike of prices.
Use this
The report showed a spike in prices.
spike表示“激增”时，固定搭配为a spike in + 具体方面（如prices、demand），介词in引出激增的对象；of不能用于这一搭配。
Not this
There was sudden spike in demand.
Use this
There was a sudden spike in demand.
spike作“激增”讲时是可数名词，在there was结构中，单数可数名词前必须加不定冠词a/an，不能裸用。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
价格激增
The price spike in housing is a major concern.
房价的急剧上涨是一个主要问题。
电压尖峰
A voltage spike can damage sensitive electronics.
电压尖峰可能会损坏精密电子设备。
金属尖钉
The gate was topped with sharp metal spikes.
大门顶部装有锋利的金属尖钉。
钉鞋
He bought new running spikes for the track meet.
他为田径运动会买了新的钉鞋。
气温骤升
A sudden temperature spike can cause heatstroke.
气温骤升可能导致中暑。
破坏某人的计划
Our rivals spiked our guns by launching the same product first.
我们的竞争对手先推出了同样的产品，破坏了我们的计划。
在潘趣酒中偷偷加入酒精（或药物）
Someone spiked the punch with vodka at the party.
聚会上有人偷偷在潘趣酒里加了伏特加。
（美式足球中）把球猛砸向地面；引申为高调庆祝成功
After landing the big account, the sales team spiked the ball in the office.
拿下大客户后，销售团队在办公室里兴奋地庆祝起来。
Use spike naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
spike 可拆成 s + pike（长矛）：尖钉像矛尖，图表上突然升起的尖峰就是价格‘激增’。
语域：mixed 常见场景：日常物品/工具描述、新闻报道/经济数据（数量激增）、体育运动（钉鞋） 这个词作名词时有多个义项，语域随义项变化：指长钉、鞋钉等实物时是普通中性词；指数量激增或图表尖峰时，多用于新闻报道、商业及数据分析等场景，语气也比较自然。实际使用中建议根据上下文判断，不宜笼统归为正式或非正式。
作为名词，可数，指尖峰或穗状物。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY, WORDNET.