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光年是一个天文单位。用英语怎么说？

光年是一个天文单位。

Light-year is an astronomical unit.

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
She was wearing an odd assortment of clothes.
她穿着奇装异服。
photoelectric astrolabe
光电等高仪
Each component is carefully checked before assembly.
每个零件在装配前都经过仔细检查。
We should buy several articles at the shop.
我们在这家商场买点东西。
Examination is by continuous assessment.
成绩以持续评估为准。
His first hit record marked the onset of an astonishing career.
他的第一张风行一时的唱片标志着惊人事业的开始。
The hurricane demage was assessed at three million dollars.
飓风损害赔偿金的金额被确定为三百万美元。
He managed to swim ashore.
他设法向岸边游过去。
His mind was assailed by doubts.
他的头脑为种种疑惑所困扰。
We have some asparagus for lunch.
我们午饭有些芦笋。
She loves art.
她热爱美术。
The police were assailed with rocks.
警察遭到石块的猛烈攻击。
I don't associate the two ideas.
这两个概念我联系不起来。
asceticism practiced in a monastery.
在修道院中实施的禁欲主义