題目大意：
飛機/汽車是否應該限制，比較利弊。
Restrict Flying:
For:
1) It is favorable to environment. It reduces carbon emission and slows down the exhaustion of resources, which can realize the sustainable development of limited energy.
有利于保護環境，減少碳排放量，減緩能源消耗，可以實現有限資源的可持續發展。
2) This practice fosters a favorable social atmosphere for environment protection. To be specific, this limit will arouse people’s awareness of environmental situation and, therefore, make greater efforts for the improvement of it.
形成了人們的環保意識，因此可以幫助他們更好地為保護環境做努力。
3) This restriction can promote the development of energy saving technologies and that of innovative means of traveling. With the airplane limited, people will certainly work on more oil-efficient alternatives for it.
限制飛機或者汽車可以促進對于節能減排技術和交通方式的研究和發展，人們可以使用更多的節能工具。
Against:
1) It brings inconvenience to travelers. If airplanes are restricted, people traveling long distances would have to spend much time on the way.
限制飛機或者汽車，對于出游旅行十分不方便，人們可能會花費更多的時間，尤其是遠距離旅程。
2) This policy would be unfavorable to the economy. To be specific, it would cause the income decrease of airlines and even the bankruptcy of them.
對于經濟發展也很不利，會引起飛機航天業的收入的下降，甚至是這部分人員的失業。
3) It is harmful to social equality. If this restriction is introduced, the ordinary people would be deprived of their equal right to fly. Flying will then be monopolized by the privileged class.
社會平等會受到影響，普通人可能不能坐飛機了，只有一些富有人群可以使用此類交通工具，出現壟斷現象。
4) The effectiveness of this policy in improving environment is highly questionable. Limiting air travel will simply cause the rise of the use of other means and will make little difference to the total pollution and carbon emission.
至于減少飛機或者汽車能保護環境的實際效果是值得懷疑的。目前還沒有具體的數據或者調查研究指出，環境問題很大程度上與飛機的過度使用有關。
5) It is unfavorable to international relations. To be specific, it increases the difficulties to the communication between peoples of different countries.
國際關系也會受到影響，畢竟國與國之間的交流很不方便，出現了地理障礙。
6) It is also harmful to people’s spiritual life. It reduces people’s happiness of international travel and the pleasure brought by flying itself.
國際旅游受到很大的影響，人們的精神生活沒有以前那么豐富。