unit 416 公用电话打长途

dialogue 
英语情景对话

A:Can I make a long-distance call from a public telephone?
A:请问哪儿有公用电话？

B:Sure, but you'll need a lot of change to put in the slot if it's not a called call.
B:可以，但如果不是对方付费，那你得投入很多硬币才行。

A:How can I know how much it takes?
A:怎么才知道需要多少钱？

B:After you dial, the operator will tell you the amount.
B:你拨完以后接线员会告诉你金额的。