原题呈现：
Do you agree or disagree with the following statement? People should not be permitted to use mobile phones on public transportation vehicles, such as buses, trains or aeroplanes. Use specific reasons and details to explain your opinion.
你是否同意以下观点?不应该允许人们在公共交通工具例如公交车、火车或者飞机上使用手机。请用具体理由和事例来说明。
参考范文：
In this question, the varying situations must be considered. As a general principle, I believe the use of mobile phones should be allowed on public transportation. But there are situations and locations when they should be restricted or forbidden and when greater common courtesy should be used.
For safety reasons, mobile phones must not be allowed on airplanes during takeoff and landing because it interferes with the communication system. Absent such practical safety considerations there should be no prohibition of cell phone use.
What applies in most situations is the objectionable behavior of the cell phone user. The passenger who absentmindedly stands in the subway doorway reading or writing text messages; the guy talking loudly on his cell phone on the night train when others are trying to sleep; the person who enthusiastically talks on the phone as the bus passes her stop then makes a scene demanding the bus driver to stop right there to let her out-all these have to do with the behavior of the mobile phone user not the fact of the phone itself as on the airplane. These situations make us wish cell phones were banned on public transportation.
But in the case of the friend who has received a suicide threatening call and is rushing to their side while trying to keep them talking on the phone; the nurse who is giving critical instructions to her neighbor whose child just been hurt; the lover who just wants to reassure his sweetheart that he loves her and wants to apologize for something he just said in anger as he left her at the bus stop; the student who is receiving word from his teacher that he has reconsidered his appeal and will allow a re-test-in these situations the cell phone must be allowed.
Thus, except in safety situations, mobile phones should be allowed. We just need improvement in the human behavior issue.
参考译文：
为了回答这个问题，我们需要考虑多种情形。在一般原则下，我认为公共交通工具上应该允许人们使用手机。但是在某些情况和地点，以及需要我们表现出一般礼貌的情况下，需要限制或禁止使用手机。
为了安全目的，飞机起飞和着陆时禁止乘客使用手机，因为手机信号会干扰飞机的通讯系统。但假如排除考虑这一实际的安全因素，则不应该禁止手机使用。
然而，更多的情况是，手机使用者的行为惹人反感。例如乘客堵在地铁出人口阅读或者编写短信;夜班火车上，有人在其他乘客都准备睡觉时大声打电话;太过热情地打电话以至于错过自己站点的乘客，却大吵大闹无礼要求司机在路边停车让她下车。所有这些都与手机干扰飞机飞行的情况不同，是乘客自己造成的，在这些情形下，我们会希望公共交通上禁止使用手机。
但还有其他的情况，例如突然接到朋友声称要自杀的电话，你必须在赶去的同时与对方保持通话;护士必须通过电话给予邻居受伤的孩子关键的急救指导;恋人想要通过电话表达对对方的爱意，并为刚刚在车站离开她时一时的气话而道歉;学生得到老师由于重新考虑了他的表现，允许他进行补考的通知。在这些情况下，手机必须允许使用。
因此，除了安全情形，手机应该被允许使用。我们只是需要关注如何改善人们的行为。
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