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"光年"用英语怎么解释

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/11/09 03:07:00
"光年"用英语怎么解释
light-year
The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46 × 1012) kilometers or 5.88 trillion (5.88 × 10 12) miles.