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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
The Devil tempted Adam and Eve.
魔鬼诱惑了亚当和夏娃。
A round of parties ushered in the New Year.
一系列的晚会迎来了新年。
We slithered down the slope to the road.
我们跌跌撞撞地从坡上滑到了公路上.
In attacking a smaller boy, he was plainly in the wrong.
他攻击一个比自己小的孩子显然该受到责备。
I am weary of his constant complaints.
我对他不断发牢骚感到厌烦。
We’ve had several phone calls already this morning from advertisers.
我们今天上午已接到好几个广告客户的电话。
What's the target readership of this paper?
这份报纸以哪些人为读者对象?
She muttered a threat.
她低声恐吓。
Problems also exist in agriculture.
农业也存在着一些问题。
a play full of scintillating dialogue.
一个充满经典对话的剧本。