Running along this entire 42,000 miles are tens of thousands of active volcanoes.
Courant tout le long de ces 42 000 milles il y a des dizaines de milliers de volcans actifs.
Running along this entire 42,000 miles are tens of thousands of active volcanoes.
Courant tout le long de ces 42 000 milles il y a des dizaines de milliers de volcans actifs.