It is very hard to breathe underwater without assistance from an air tank.
They bought a ventilator so that they can breathe fresh air in their small apartment.
the answer is breathe.
"Breathe in and breathe out, for you must breathe to live."
"I can breathe now" said Mr Smith. The stuffy nose made it difficult to breathe.
Example: Is that awful stench coming from your shoes? Go wash them immediately!
Gas
I travel to the countryside to breathe in the fresh open air. Alternatively I could have said "I travel to the countryside to breathe in and breathe out the air in order to refresh myself".
Humans breathe out carbon dioxide, the whole world runs in a motion, for example plants breathe carbon dioxide, we breathe in oxygen. Even fish breathe oxygen. They take the oxygen out of the water. So we breathe in what plants breathe out and plants breathe in what we breathe out.
One of the elements is gas, an example of that word is air that we breathe in everyday.
It is certain that I will breathe today.
The peacefulness of the lake was breathe taking
Jesse breathed heavily after running around the bases>