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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；
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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。
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He watched his cigarette die in the ashtray.
他看着他的烟在烟灰缸里熄灭。
He rode astride.
他骑在马背上。
They’re walking on the asphalt road.
他们正行走在柏油路上。
He is a man of enormous size and terrifying aspect.
他是一个面目狰狞的彪形大汉。
According to the assessor’s statement,the fire damage was not severe.
根据估价员的估计,火灾损失并不严重。
This remark astounded me.
这话使我大吃一惊。
They have assigned me a small room.
他们已给我分配了一个小房间。
She puts on her finest array.
她穿上最漂亮的衣服。
He took two aspirins for a headache.
他服两片阿司匹林治头痛。
Their society was built around a belief in God.
他们的社会建立在信仰上帝的基础上。
He stepped aside to let them pass.
他站到一旁让他们通过。
I think he's having an asthma attack.
我想他现在是哮喘病发作了。
Articulate speech is very important.
清楚的表达能力是非常重要的。
The bank has assets of more than ￡1 billion.
该银行有十亿多英镑的资产。