好的，我们来详细解析 英语单词 “spontaneously”。我会从音标、意思、翻译、读音、用法、例句和短语搭配全面讲解。

1️⃣ 音标 (Pronunciation)

spontaneously

美式音标： /spɑnˈteɪniəsli/

英式音标： /spɒnˈteɪniəsli/

分音节： spon·ta·ne·ous·ly

读音提示：

“spon” → 像中文“斯潘”

“ta” → 像中文“泰”

“neous” → 像中文“尼厄斯”

“ly” → 像中文“利”

综合读起来大致是：斯潘-泰-尼厄斯-利

2️⃣ 单词意思

spontaneously 是副词，意思为：

自发地，自动地

自然地，无意识地

中文翻译：自发地；自然地；不由自主地

3️⃣ 用法

常用来描述行为、反应、事件等自然发生而非计划或强制的情况。

可与动词搭配，如 occur, react, arise 等。

4️⃣ 短语搭配 (Common Collocations)

spontaneously occur → 自发发生

spontaneously generate → 自然产生

spontaneously react → 自发反应

spontaneously combust → 自燃

spontaneously develop → 自发发展

5️⃣ 例句 (10句)

The crowd spontaneously cheered when the singer appeared.
→ 当歌手出现时，观众自发地欢呼。

The flowers in the field spontaneously bloom every spring.
→ 田野里的花每年春天都会自然开放。

He spontaneously offered to help without being asked.
→ 他在没有被要求的情况下自发提出帮助。

Laughter spontaneously broke out in the classroom.
→ 教室里自发地爆发出笑声。

The chemical reaction spontaneously occurs at room temperature.
→ 这种化学反应在室温下会自发发生。

The idea spontaneously came to her mind while walking.
→ 她在散步时灵机一动，想出了这个主意。

People spontaneously gathered to protest the decision.
→ 人们自发地聚集起来抗议这一决定。

Tears spontaneously flowed from his eyes.
→ 他的眼泪不由自主地流了出来。

Certain materials can spontaneously combust under high heat.
→ 某些材料在高温下会自燃。

The town spontaneously developed a unique tradition over centuries.
→ 这个小镇几百年来自发形成了一种独特的传统。

如果你愿意，我可以帮你画一张 “spontaneously 的思维导图”，把音标、意思、用法、短语和例句都可视化，看一眼就能记住。

你希望我画吗？