spontaneous

adj. 自发的；自然的；无意识的

adj.

自发的；自然的；天然产生的；无意识的

双语释义

自发的,无意识的 done,happening,said,etc. because of a voluntary impulse from within,not caused or suggested by sb/sth outside

自然的,天真率直的 natural,not forced

英英释义

spontaneous[ spɔn'teiniəs ]

adj.

happening or arising without apparent external cause

"spontaneous laughter"; "spontaneous combustion"; "a spontaneous abortion"

同义词：self-generated

said or done without having been planned or written in advance

同义词：ad-libunwritten

词汇搭配

用作形容词 (adj.)

～+名词

spontaneous applause自发的鼓掌

spontaneous gaiety of manner天真愉快的神态

词组短语

spontaneous combustion自燃

spontaneous emission[电磁学]自发发射

spontaneous abortion自然流产；自发性流产

amplified spontaneous emission放大自发射；放大式自发射

spontaneous ignition自燃

spontaneous polarization自发极化；自然极化

spontaneous recovery自然回复（恢复）；自然痊愈

spontaneous radiation自发辐射

spontaneous magnetization自发磁化；自发磁化强度

双语例句

用作形容词(adj.)

He is spontaneous to offer help.
他主动提供帮助。

It is a spontaneous cheer from the crowd.
那是群众自发的喝彩。

The spontaneous applause cut the singer short.
自发的掌声打断了歌唱家的演唱。

The eruption of volcanoes is spontaneous.
火山爆发是自然产生的。

The spontaneous combustion of the oil-soaked rags caused the barn to catch fire.
油布碎片的自燃使谷仓起火。

权威例句

spontaneous (adj.)

1650s, "occurring without external stimulus," from Late Latin spontaneus "willing, of one's free will," from Latin (sua) sponte "of one's own accord, willingly;" of uncertain origin. Related: Spontaneously; spontaneousness. Used earlier of persons and characters, with a sense "acting of one's own accord" (c. 1200). Spontaneous combustion first attested 1795. Spontaneous generation (the phrase, not the feat) attested from 1650s.

1. Hearing the joke, we burst into spontaneous laughter.

听到笑话,我们不由自主地大笑起来。

-- 来源 -- 英汉 - 辞典例句

2. It was probably as close as she had ever come to spontaneous surrender.

这简直是自发的委身入怀。

-- 来源 -- 英汉 - 辞典例句

3. Spontaneous photons initiate stimulated emission and the chain reaction begins.

自发发射的光子引起受激发射，开始了链式反应。

-- 来源 -- 英汉 - 辞典例句

4. Careful nursing, with particular attention to feeling, will aid those cases where spontaneous recovery is likely.

精心护理，特别注意喂饲，有助于一些病例的自行恢复。

-- 来源 -- 英汉 - 辞典例句

5. Various substances in plant extracts may cause spontaneous or non-specific precipitation.

植物提取液中的各种物质都可能引起自发的或非专化性的沉淀。

-- 来源 -- 英汉 - 辞典例句

6. a spontaneous action

自发的行为

-- 来源 -- 英汉 - 辞典例句

7. Spontaneous gastric incretion occurs without intentional stimulation in man and in certain other species.

在人类和某些动物身上，自主性胃分泌在没有意识的刺激时也会发生。

-- 来源 -- 英汉 - 辞典例句

8. Claims made for spontaneous generation are now attributed to an innocent form of self-deception.

现在认为元生源论的发表是来自天真的自欺。

-- 来源 -- 英汉 - 辞典例句

9. The spontaneous regression of established tumors is a rare.

长成的肿瘤自发地消退是罕见的。

-- 来源 -- 英汉 - 辞典例句

10. Its use in the spontaneous disease of animals is probably justified.

把它应用于动物的自然病例很可能是有效的。

-- 来源 -- 英汉 - 辞典例句