语文书 / 例句 /

The stars must have formed 10 to 15 billion years ago...是什么意思？

The stars must have formed 10 to 15 billion years ago...

这些恒星一定是形成于 100 到 150 亿年前。

相关词汇
the stars must have formed to billion years ago

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。

stars

abbr. specialized training and reassignment students 经过专门训练后再分配的学生，stationary automotive road stimulator (Toyota) 汽车公路固定刺激物（丰田汽车）；n. 星( star的名词复数 )，明星，（尤指旅馆或餐馆的）星级，星象（根据人出生时天体的位置而描述的命运）；
例句
Ptolemy charted more than 1000 stars in 48 constella-tions...
托勒密绘制了48个星座1,000多颗恒星的星位图。

must

aux. 必须，必然要，（做出逻辑推断），（表示坚持）；n. 必须做的事，必不可少的事物，葡萄汁，霉臭，麝香；vt.& vi. （表示必要或很重要）必须，（提出建议）应该，得，（表示很可能或符合逻辑）一定；adj. 不可或缺的，狂暴的；
例句
Some parents believe a boy must learn to stand up and fight like a man.
有些父母认为男孩子必须学会像男子汉一样顶天立地，勇于抗争。

have

aux. 用以构成完成式及完成式的不定式，表示已经…；vt. 有，具有，拿，取得，从事，必须，不得不；n. 〈口〉有产者，有钱人，富国，〈英俚〉欺骗，诈骗；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

formed

adj. 成形的，成形加工的；v. 形成，构成，产生( form的过去式和过去分词 )，是，（使）成形，结成（友谊）；
例句
A frown formed between her arched brows.
她皱起两道弯眉。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；
例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

billion

n. 十亿，数以十亿计，大量，一万亿；adj. （法美）十亿的，（英德）万亿的，无数的；
例句
The bank advanced $1.2 billion to help the country with debt repayments.
银行预支12亿美元帮助该国偿还债务。

years

n. 年( year的名词复数 )，年纪，一年的期间，某年级的学生；
例句
His wife was sentenced to seven years imprisonment for aiding and abetting him...
他的妻子作为他的从犯被判入狱7年。

ago

adv. 以前，过去的，之前；
例句
He was killed a few days ago in a skiing accident...
几天前他在一场滑雪事故中丧生。
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
He is course tutor in archaeology at the University of Southampton...
他是南安普敦大学考古学课程导师。
The youth, too, fulfilled the prophecy.
那个年轻人，同样地，让预言说中了。
Students are accommodated in homes nearby.
学生被安置在附近的住家中。
Digging further into the medical literature, I found out there was a scientific explanation for all this...
进一步翻阅医学文献后我发现，这些都是有科学解释的。
...the new republic that emerged in October 1917.
1917年10月成立的新共和国
In the Senate, the count is too close to call at this point.
参议院现在的票数还难分上下。
When Wardell was interviewed, he was impressive, and on that basis, he was hired...
沃德尔参加面试的时候给人留下了深刻印象,所以基于这点,他被雇用了。
I could tell that my refusal to allow him to ruffle me infuriated him.
我能看出，我不吃他那一套让他很恼火。
...a bracing walk.
舒心惬意的散步
Everything seems to be stacked against us.
一切好像都对我们不利。