第23章 Lesson 23: The Moon
- 跟美国学生同步练阅读：Smart Reading（英文原版 Grade 2）
- (加)韦恩·埃弗里特
- 351字
- 2016-12-27 16:28:28
The Moon goes around the Earth. This is called an "orbit". The same side of the Moon always faces th...
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The Moon goes around the Earth. This is called an "orbit". The same side of the Moon always faces th...