C1595

"What?" Are you out of breath? " Bai Qi looked at Jiang Mo. This was yet another strange phrase.

Jiang Mo nodded. "We... "No, humans need air for their breathing. You all know that, right?"

Everyone nodded.

Jiang Mo continued, "But, what you guys don't know is that what we need is not just air, but a part of air. To be exact, it's called oxygen, and in the air, there's not only oxygen