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The axis of a circle is its diameter.是什么意思？

The axis of a circle is its diameter.

圆的轴线是其直径。

相关词汇
the axis of circle is its diameter

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。

axis

n. 轴，轴线，[政]轴心，轴心国，[植]茎轴；
例句
The boat pivoted on its central axis and pointed straight at the harbour entrance...
小船原地掉过头来，直指海港入口。

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。

circle

n. 圆，圆状物，一圈，圈子；vt. 圈出，包围，绕…运转；vi. 环绕，盘旋；
例句
I have a large circle of friends and acquaintances engaged in photography.
我在摄影界交游甚广。

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。

its

pron. (it的所有格形式)它的，厥；
例句
The government is to accelerate its privatisation programme.
政府将加快其私有化计划的进程。

diameter

n. 直径，直径长，放大率；
例句
...a tube less than a fifth of the diameter of a human hair.
直径不足人的头发直径1/5的电子管
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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 bad news sobered us a while.
坏消息使我们冷静了一会儿。
The officials discharged him from prison.
官员们从监狱中释放了他。
The African sun beat relentlessly down on his aching head.
非洲的太阳无情地照射在他那发痛的头上。
My father allows me ten dollars a month for my pocket money.
我的父亲每月给我十美元零用钱。
The wound hasn't healed, there's still some discharge.
伤口没好, 还有些浓液。
Mary looked at him waiting there.
玛丽看见他在那里等着。
Our plans are fairly elastic.
我们的计划有相当的灵活性。
His behaviour reflects dishonour on his parents.
他的行为有损于他父母的声誉。
her hideously charred and blackened features
她那被烧焦变黑、非常可怕的面部
They begin breakfast at seven.
他们七点钟开早饭。