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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.
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。
Be civil to all; sociable to many; familiar with few; friend to one; enemy to none.
Quality is not a choice; it is a requirement.
The questions we ask today will shape the solutions of tomorrow.
The only way to do great work is to love what you do.