加五个词：
Little birds often can fly vey high.
Finally we all planned to buy it with cash firmly.
This is an old English dictionary of my little brother's.
加十个词：
According to experts,birds with streamlined bodies can fly much higher than others.
Despite the higher price for this house,we planned to buy it in the end.
This is an English dictionary my father has purchased to me as a birthday gift.
加十五个词...你确定要这样扩充句子?已经不能好好玩了==