英译汉：“如何将树转化为木材”

How to turn the tree to the wood

How to transform the trees into wood?
如何将树转化为木材?

how to make tree of wood?
make..of ..是将..做成...的意思

eg:wood is made of chairs木头被做成板凳

how to make woods out of trees

How transforms the tree as the lumber

How to turn a tree into timber