関連ワード:
why can't you go to the bottom of the ocean why can't we go to the bottom of the ocean why can't we get to the bottom of the ocean why can we go to space but not the bottom of the ocean why can't submarines go to the bottom of the ocean why can't humans go to the bottom of the ocean why can't you swim to the bottom of the ocean can you get to the bottom of the ocean what happens if you go to the bottom of the ocean why can't we reach the bottom of the ocean
