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The cause of autism is unknown.是什么意思？

The cause of autism is unknown.

自闭症的病因尚不清楚.

相关词汇
the cause of autism is unknown

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。

cause

n. 原因，动机，理由，事业；vt. 成为…的原因，导致，引起，使遭受；
例句
Poor posture can cause neck ache, headaches and breathing problems.
姿势不当会导致颈部疼痛、头痛和呼吸困难。

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。

autism

n. 孤独症，自我中心主义；
例句
The cause of autism is unknown.
自闭症的病因尚不清楚.

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。

unknown

adj. 未知的，不出名的，从未发生的，从不存在的；n. 不知名或不出名的人，未知的事物，<数>未知数，未知数；
例句
It is not unknown for valuable display items to go, ahem, missing.
贵重的展品，呃哼，丢失的话，会众人皆知。
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 woman had gone mad.
那女人疯了。
Then it might singe the backsides of some of those snotty - nosed shufflers in Parliament.
那样也许可以把国会里一些卑鄙的 两面派 的屁股烧它一下.
Proliferation of lymphocytes in lacrimal and salivary glands may cause bilateral painless enlargement.
泪腺和唾液腺淋巴细胞增生,可引起两侧腺体无痛性肿大.
'You want an apple with your cheese?' — 'Please.'
“要不要加个苹果和奶酪一起吃？”——“行啊。”
Built - in FM radio module, Chargeable lithium battery.
内 置 的调频收音机模块, 收费锂电池.
We have made inroads into our painting job;we finished the kitchen already.
我们的粉刷工作有进展了, 已经把厨房刷好了。
Throughout the Twenties, Lardner tried in vain to write a hit song, so at last he turned to parody.
整个20年代，拉德纳尝试着想要写出一首走红歌曲，可是都失败了，于是最后转向戏仿他人的作品。
There are lots of books crammed with bright ideas...
许多书里都有很多绝妙的想法。
Republican leaders called him a disgrace to the party...
共和党领导人称他是全党的耻辱。
He squealed the words out.
他吼叫着说出那些话.