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。
我们希望通过技术让更多人被看见，让更多声音被听见。
行为由当前刺激情境和过去的强化历史决定。
我相信接纳。我相信当下。
真正的英雄是懂得生活在和平中而非战争中的人。
The metal container industry may seem traditional, but its potential for innovation is limitless.
The study of automorphic forms is a journey into the hidden symmetries of the universe.