C3213 Manufacture of Submarines

"So many cannibal fish, no one can enter the sea at all, which means that no one knows what is at the bottom of the sea. For virgin areas that have not been developed, there are definitely unexpected harvests. No matter how difficult it is, we have to open a tunnel leading to the bottom of the sea. " Goddess of Wisdom said seriously.

Ning Caichen frowned. He entered the seabed