1光年的意思、翻譯和例句

是什麼意思

「光年」是用來測量距離的單位,特別是在天文學中。它是光在真空中一年所行進的距離,約為9.46兆公里(或5.88兆英里)。光年主要用於描述星系、恆星及其他天體之間的距離。由於宇宙的巨大規模,使用光年作為距離的單位可以更方便地表達這些距離。

依照不同程度的英文解釋

  1. The distance light travels in one year.
  2. A way to measure far distances in space.
  3. The distance that light goes in a year.
  4. A unit for measuring large distances in astronomy.
  5. A measurement based on how far light travels in a year.
  6. A unit of distance used in astronomy that represents how far light travels in one year.
  7. A measure of distance equivalent to the distance light travels in one year, approximately 9.46 trillion kilometers.
  8. A unit of astronomical distance that describes how far light travels in one year.
  9. A standard unit of measurement in astrophysics that quantifies vast distances based on the speed of light.
  10. A distance measurement that reflects the distance light covers in the span of a year.

相關英文單字或片語的差別與用法

1:Light year

用法:

光年主要用於天文學,特別是在描述恆星、星系及其他天體之間的距離時。由於宇宙的巨大規模,光年提供了一種方便的方式來表達這些極端的距離。在日常生活中,這個單位並不常用,但在科學和天文學的討論中卻是非常重要的。

例句及翻譯:

例句 1:

這顆恆星距離地球約四光年。

This star is about four light years away from Earth.

例句 2:

我們的銀河系直徑約為十萬光年。

The diameter of our galaxy is about one hundred thousand light years.

例句 3:

當我們觀察遙遠的星系時,我們看到的是它們幾百萬年前的樣子,因為光需要那麼久才能到達我們。

When we observe distant galaxies, we see them as they were millions of years ago because it takes that long for light to reach us.