1. What is the passport to happiness?. �õ��Ҹ����ֶ���ʲô?��
2. Please show your ticket and passport. ���ʾ���Ļ�Ʊ�ͻ��ա�
3. Take your passport, please. Have you anything dutiable? ��ѻ�����ȥ����Ӧ��˰�Ķ�����
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n.
1. any authorization to pass or go somewhere
2. a document issued by a country to a citizen allowing that person to travel abroad and re-enter the h
3. any quality or characteristic that gains a person a favorable reception or acceptance or admission