"Yes, but how many days will we last without water?"
Seven knew that, advanced training or no, he couldn't last much longer without water.
Because how long could they last without food and water?
And the old man won't last any time without her.
How long do you think they could last, without help?
She couldn't last longer than a couple of days without it.
They couldn't last more than a minute or two without air.
In fact, water is so important that a person couldn't last more than five days without it.
"They won't last through the day tomorrow without more than a few hours rest."
"You said yourself we won't last three days in this desert without water."