What's mean of "building a fire"
原文：
esides, you always have to worry about mosquitoes, building a fire and what to do in case it rains

Question

What's mean of "building a fire"
原文：
esides, you always have to worry about mosquitoes, building a fire and what to do in case it rains

Answer

Place small sticks in a pile.
Light a match.
Using the match, light the sticks.
As the flames burn through the sticks, add bigger sticks.
Add even bigger sticks.
Add some small logs, then bigger logs.
Sit back, and wait a while.
Now you have a fire, and can keep warm and cook dinner!

Answer

起火，生火！

Answer

"building a fire" in your statement is of literal meaning - "to set a fire".  

Thanks to Don for sharing us a detailed process on how to set one.

:)