第298章 Lesson 37 Space Based Astronomy
- 跟美国学生同步练阅读：Smart Reading（英文原版 Grade 1-8）
- (加)韦恩·埃弗里特
- 483字
- 2017-12-29 12:36:18
If you go to the countryside, far from the city lights, you can see about 3,000 stars on a clear nig...
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If you go to the countryside, far from the city lights, you can see about 3,000 stars on a clear nig...