英：['laɪt'jɪr]
美：['laɪt'jɪr]
light-year如何读
light-year是什么意思
- n.光年
light-year变形
light-years
light-year英英释义
noun
a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers)
an extremely large measure of comparison (as of distance, time, or quality) has light-years more talent two minutes and yet light-years away from the crowded village—Suzanne Patterson
seems like light-years ago
light-year词源中文解释
也称 lightyear，意为“光在一年内行进的距离”（约5.87万亿英里），1888年出现，源自 light（n.）和 year。
light-year词源英文解释
The first known use of light-year was in 1864
light-year儿童词典英英释义
like1 of 9verb
to have a liking for : enjoy
likes baseball
to feel toward : regard
how do you like this weather?
to wish to have : want
would like a drink
to feel inclined : choose
you can leave any time you like
to indicate approval of (as an online post) for others to see (as by clicking on an icon designed for that purpose)
like2 of 9noun
liking, preference
my likes and dislikes
an instance of liking an online post
like3 of 9adjective
being the same or very nearly the same suits of like design
two like magnetic poles
like4 of 9preposition
similar to
the house looks like a barn
typical of
it would be just like you to do that
similarly to blow it up like a balloon
acting like a fool
likely to
looks like rain
such as
a subject like physics
like5 of 9noun
equal entry 2 sense 1also: kind entry 1 sense 1a I'd keep him and his like away
may never see its like again
like6 of 9adverb
likely entry 2, probably
like as not the cat's under the porch
in some amount : somewhat, seemingly
it moves stiff like
close to : within a little : nearer
the rate is more like 18 percent
like7 of 9conjunction
as if pedaling like mad
the plane looked like it would crash
in the same way that : as does it look like it used to?
you sound just like I do
like8 of 9helping verb
came near : was near
I like to have died laughing
-like9 of 9adjective combining form
resembling or characteristic of ladylike
bell-like
light-yearnoun
a unit of length in astronomy equal to the distance that light travels in one year or 5,880,000,000,000 miles (9,460,000,000,000 kilometers)
a very great distance especially in progress
light-years ahead in design
light-year 例句
1 We are lagging behind at China with the speed of light - year, overtook impossibly again.
我们正在以光年的速度落后于中国, 不可能再追上了.
2 my sister and I are close in age, but personality-wise, there are light-years between us
3 The distance travelled by light in one year is called a light year.
光在一年内行经的距离称作1光年.
4 Astronomers have spotted signs of an atmosphere on an exoplanet 41 light-years away from Earth—the best evidence to date for a rocky planet with an atmosphere outside our solar system, according to a statement from NASA.
5 The end of the structure, which could better be described as a claw rather than a hand, is 1.5 light-years across, NOIRLab said.
6 And one light year is the distance that light travels in a year.
和一架轻型今年是距离光在一年.
7 The distance traveled by light in one year is called a light year.
一光年的距离大得令人难以想象.
8 This stellar nursery is about 450 light-years away from Earth.
9 A light - year is about 6 trillion miles, the distance light travels in a year.
一 光年 大约6百亿亿英里, 即光行走一年的距离.
10 Some 3,800 light-years away from Earth, in the Southern Hemisphere constellation Norma, lies a massive cloud of gas and dust.
11 It is over 4 light - year away from earth.
它距地球4 光年 多.
12 A light - year is the distance light travels in one year.
一 光年 是光运行一年所走的距离.
13 The map, painted in infrared wavelengths, reveals new details in a stretch of our galactic home 500 light-years wide.
14 IceCube has detected neutrinos created in several places, such as the Earth’s atmosphere, the center of the Milky Way galaxy and black holes in other galaxies many light-years away.
15 But at 280 light-years away and practically face-to-face with its star, WASP-43b is difficult to see clearly through telescopes.
16 A place that requires one year for light to reach is one light year distant from us.
因此光需要一年时间才能到达的地方离我们也就是一光年的距离。
17 More than one million light - year !
超过一百万 光年!
18 Early light - year ( AD 319 years ) after the establishment of Zhao crown.
光 初二年 ( 公元319年 ) 称王建立后赵.
19 And one light year is the distance that light travels in a year . 1.
一光年就是光在一年中传播的距离.
20 Something set off some unique gravitational waves from 650 million light-years away.
light-year 同义词
1 非常长的时间