短缺乃是一种符号，它意味着价格被人为地保持在低于供求双方可以自由行事时的水平。
A shortage is a sign that somebody is keeping the price artificially lower than it would be if supply and demand were allowed to operate freely.
We stopped looking for monsters under our bed when we realized that they were inside us.
The trend is your friend until it ends.
书籍是通往宇宙的钥匙。