Fire was one of the earliest major technological advances for humankind, providing heat, protection, and cooked food (which is much easier to cat and digest).
出自-2014年6月阅读原文
City officials cooperated with the 4-H members in planting trees, building cooking facilities, pick-me tables, swings and public rest rooms.
出自-2013年6月听力原文
They set up cooking facilities near it
出自-2013年6月听力原文