第364章 Lesson 38: Extreme Weather
- 跟美国学生同步练阅读：Smart Reading（英文原版 Grade 1-6）
- (加)韦恩·埃弗里特
- 3176字
- 2016-12-27 15:08:12
Severe storms happen in low-pressure weather systems. Warm, wet air begins rising into the air. The ...
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Severe storms happen in low-pressure weather systems. Warm, wet air begins rising into the air. The ...