简答题The egg sac was also waterproof.简答题The animals treated Fern as an equal.简答题The web is easily broken because it is made of thin, delicate strands.简答题Fern went to the barn every day to visit Wilbur.简答题Charlotte would go back the barn with Wilbur.简答题Wilbur would gladly give his life for Charlotte.简答题Wilbur would be cold at night in his large wooden box.