Chinese–EnglishWith examples

光速

guāng sù · guang su

Same in simplified and traditional Chinese

Meaning

CC-CEDICT
  1. the speed of light
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In a conversation

0:20 cartoon

How fast is light?

  1. Dengdeng

    亮亮(liàngliàng)，你(nǐ)知道(zhīdào)光速(guāngsù)有(yǒu)多(duō)快(kuài)吗(ma)？

    Liangliang, do you know how fast the speed of light is?

  2. Liangliang

    知道(zhīdào)，光速(guāngsù)一秒(yīmiǎo)能(néng)绕(rào)地球(dìqiú)七圈(qīquān)半(bàn)。

    Yes. At the speed of light you go around Earth seven and a half times a second.

  3. Dengdeng

    那(nà)太阳(tàiyang)的(de)光(guāng)到(dào)我们(wǒmen)这里(zhèlǐ)要(yào)多久(duōjiǔ)？

    Then how long does sunlight take to reach us?

  4. Liangliang

    大概(dàgài)八(bā)分钟(fēnzhōng)。

    About eight minutes.

  5. Dengdeng

    八(bā)分钟(fēnzhōng)？我(wǒ)坐(zuò)地铁(dìtiě)上班(shàngbān)都(dōu)要(yào)四十(sìshí)分钟(fēnzhōng)！

    Eight minutes? My subway ride to work takes forty minutes!

  6. Liangliang

    那(nà)你(nǐ)得(děi)有(yǒu)光速(guāngsù)地铁(dìtiě)才行(cáixíng)。

    Then you would need a speed-of-light subway.

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In a sentence

2 examples
01

光(guāng)速(sù)比(bǐ)音(yīn)速(sù)快(kuài)很(hěn)多(duō)。

The speed of light is much greater than that of sound.

Tatoeba: Chinese by nickyeow · English by Eldad · CC BY 2.0 FR. Pinyin added or corrected.

02

在(zài)真(zhēn)空(kōng)中(zhōng)，光(guāng)速(sù)是(shì)一(yí)个(gè)常(cháng)数(shù)。

In a vacuum, the speed of light is a constant.

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Definitions adapted from CC-CEDICT, published by MDBG and its contributors, under CC BY-SA 4.0. Pinyin display and entry grouping have been adapted.

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