光年用英语怎么解释
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:英语作业 时间:2024/07/08 15:59:40
光年用英语怎么解释
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light-year
1光年是以每秒186000英里的速度走过一年的距离,约为6万亿英里.
A light year is the distance which light travels at186,000 miles per second in one year,namely6 million million miles.
1光年是以每秒186000英里的速度走过一年的距离,约为6万亿英里.
A light year is the distance which light travels at186,000 miles per second in one year,namely6 million million miles.