We had Beijing roast duck.

北京烤鸭（Beijing roast duck）是北京的传统美食之一，起源于明朝。烤鸭是在烤炉里烤制的，使用清淡的酱汁，通常是配以饭或馒头。

例句：

I highly recommend trying the Beijing roast duck while you're in Beijing.
Beijing roast duck is a must-try dish when you visit Beijing.
The Beijing roast duck is crispy on the outside and juicy on the inside.

翻译：

我强烈建议你在北京时试试北京烤鸭。
如果你去北京，必须尝试北京烤鸭。
北京烤鸭外皮脆，内里多汁。