詞語：light-year
light-year的同義詞
n. light year
light-year的解釋
light-year['laitjə:]n. 光年
light-year的意思
light-year 光年 :光在一年中所走的路程，等於五億九千萬英里（九億五千萬公里）。;
light-year的參考例句
1.Early light-year (AD 319 years) after the establishment of Zhao crown. 光初二年（公元319年）稱王建立後趙。
2.It is a 50-light-year-wide view of the central region of the Carina Nebula where a maelstrom of star birth - and death - is taking place. 那是卡林娜星雲中心直徑達50光年的區域，一顆恆星在這裡誕生，並且在這裡消亡。
3.The object is actually a shell of gas and dust that has been blown off by a faint central star, lying around 700 light-year away in the constellation of Aquarius. 該景象實際上是一個衰亡中的恆星釋放出的氣體和灰塵，位於離地球約700光年的寶瓶座星系。