2--Walk straight and you will see it.
 
1--I would like to buy round ticket to London please.
 
2--The next one?
 
1--Yes. How long is the round ticket good for?
 
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注解：
 
1.ticket票
2.Walk straight直走
3.round ticket往返票
 
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译文：
 
1--请问，哪里是售票厅啊？
2--一直往前走你就会看到的。
1--我想买张去伦敦的往返票。
2--下一班的吗？
1--是的，返程票多少天内有效?