吕氏英汉字典[简体]:
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light-year
"light-year" Chinese translation ("light-year" in Chinese, "light-year" 中文翻译, "light-year"发音):
light-year
n. 『天文』光年 (光在一年之间所行的距离) [n. 『天文』光年 (光在一年之间所行的距离) ]
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