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The eruption of a volcano is spontaneous.是什么意思？

The eruption of a volcano is spontaneous.

火山的爆发是自发的。

相关词汇
the eruption of volcano is spontaneous

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

eruption

n. 喷发，爆发；
例句
The eruption has left a thin veil of dust in the upper atmosphere...
火山爆发在高层大气中留下了一层薄薄的尘土。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

volcano

n. 火山；
例句
...when the long dormant volcano of Mount St Helens erupted in 1980...
当长期休眠的圣海伦斯火山在 1980 年爆发时

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

spontaneous

adj. 自发的，自然的，天然产生的，无意识的；
例句
Diana's house was crowded with happy people whose spontaneous outbursts of song were accompanied by lively music...
戴安娜的家里挤满了兴奋的人们，他们伴着欢快的音乐不由自主地引吭高歌。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
This was only a fragment of a long conversation with John.
这仅仅是与约翰长谈的一个片断。
She had no appreciation of the difficulties we were facing.
她不了解我们所面临的困难。
The place swarmed with tourists.
那个地方游人云集。
She's a very casual person.
她是一个很随便的人。
You should marry intellect with sensibility in dealing with it.
处理这件事时你应把理智与情感融合在一起。
Several schools face eventual closure.
几所学校面临最终关闭。
He thinks the company is going to go bankrupt soon, so he’s getting out while the going is good.
他认为公司即将破产，所以就趁境况还没变糟之前抽身退出。
Memories of her childhood haunted her.
童年时代的记忆经常在她脑中萦绕。
CDs would be far cheaper to produce without the glossy packaging.
如果没有那些花哨的包装，CD 的生产成本会低得多。
The train made an unauthorized stop.
火车擅自停车。