Subtitles and vocabulary
Click the word to look it up Click the word to find further inforamtion about it
B2 forcing earth volcanic electromagnetic radiation tectonic earth crust
L9P1
- 529 33QAM Chen posted on 2013/11/05
Video vocabulary
Click the word to look it up Click the word to find further inforamtion about it
B2 forcing earth volcanic electromagnetic radiation tectonic earth crust