build sth.out of
问题描述：
build sth.out of
答
build sth. out of sth-------build A out of B-------从B变成A
例句：
Not having been seen for 15 years,Mary built herself into a pretty mother out of a little girl.
十五年不见,Mary由一个小女孩变成了一位漂亮的母亲.