在一座孤岛上,应该发明什么,英语作文

What should be invented when you are on a deserted island?Robinson gave us a good example.I think,first of all we should go and find something to eat.Secondly ,we should find some self-defense weapons.We should always remember to go back to our society.We should learn to record the time day by day so that we won't lose our hope during the waiting.