complain

抱怨

Sorry, but I've been waiting for one hour.

抱歉，但是我已经等了一个小时了。

Sorry, but...

不好意思，但是...

We've waited for 30 minutes. No service.

我们在这里等了30分钟，都没有服务呀。

Sorry, but the steak is too tough.

牛排太硬了。

Sorry, but the soup is too salty.

汤太咸了。

May I change my seat?

我能换一下座位吗？