2-- You're right. It's running late.

1-- It was supposed to be here thirty minutes ago.

2-- Just be a little more patient. I'm sure it'll arrive any minute now.

1-- We're going to be so late, all because of this late bus.

2-- The buses usually come on time.

1-- They should always be on time. Don't they know people depend on their swiftness?

2-- Just wait a little longer.

1-- I'm tired of waiting. This bus is never going to come.

2-- Complaining is not helping the situation.

1-- I have every right to be complaining!

2-- Suit yourself then.

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注解：

1.supposed to应该

2.swiftness迅捷

3.situation形势

===================================

译文：

1--这班公交花了这么长时间！

2--你说的对。它晚点了。

1--应该在30分钟前到达这里。

2--再耐心一点吧。我确定它马上就到了。

1--我们要迟到很多，都是因为这班晚点的公交。

2--公交通常都会准时。

1--他们应该总是准时。难道他们不知道人们指望他们的敏捷吗？

2--再稍等一会。

1--我等够了。这班公交可能再也不会来了。

2--抱怨并不能对现在的处境有帮助。

1--我有抱怨的权利！

2--那你随便。