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Light-year is an astronomical unit.是什么意思？

Light-year is an astronomical unit.

光年是一个天文单位。

相关词汇
is an astronomical unit

is

vt.& vi. 是（be的三单形式；n. 存在；

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

astronomical

adj. 天文学的，极大的；

unit

n. 单位，单元，装置，个体，[数]单位数；
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
We mistook assumption that the price would fall.
我们错误地认为价格会下降。
material misstatement risks at the assertion level
认定层次的重大错报风险
Policemen have authority to arrest lawbreakers.
警察有权逮捕犯法者。
He broke his arms in an accident.
他在一次事故中折断了手臂。
We had better treat it as a joke.
我们最好把它当作玩笑。
The house was burnt down to ashes.
房子被烧成了灰烬。
We ask you ten dollars.
我们向你要价十美元。
The training program covers every aspect of the job.
训练计划的范围包括了这种工作的各个方面。
His arrival brought complete silence to the room.
他的到来使房间里鸦雀无声。
the change of astigmatic axial.
散光轴向的改变
We missed the track and went astray.
我们走错了道,迷路了。
As soon as the young man returned home,his parents assailed him with questions about the interview.
那年轻人刚回到家,他的父母便向他问这问那的,打听他求职面试的事。
He was unable to escape the array of facts.
他无法躲避一连串的事实。
Borrowing is set to soar to an astonishing ￡60 billion.
借款很可能猛增至惊人的600 亿英镑。