Traveler: Yes. How long is the round ticket good for?

游客：是的，返程票多少天内有效？

If someone like yourself volunteers, they receive a free round trip ticket to be used within one year.

自愿的人可以得到一张一年内有效的免费往返票。

Man purchasing round trip ticket to board the Statue of Liberty ferry in New York on May 1, 1968. (AP Photo)

1968年5月1日，一个男人购买了前往自由女神像的轮渡的往返船票。

They said they installed aluminium sidings, and bought a bus ticket for him; but when he turned round to say goodbye, they had gone.

他们说他们帮他装上铝的侧板，并为他买了一张车票；但当他转身道谢的时候，他们却已经不见了。