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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.
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详情请致电414 3925,转分机2253。
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。
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。
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。
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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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警方侦破了一个行刺总统的阴谋。
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他在一次事故中折断了手臂。
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新筑的水坝将会在后面形成一个人工湖。
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议会所通过的新方案已获国王批准。
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因为你不在那里, 我留了个信儿。
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这些房子的修建速度快得惊人。
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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。
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在修道院中实施的禁欲主义
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横跨河流
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