where是一个常见的关系副词，可以用于引导定语从句和状语从句。定语从句用于修饰名词或代词，状语从句则用于修饰动词、形容词或副词。

以下是一些关于where的定语从句和状语从句的例句：

定语从句：

1. The hotel where we stayed last summer was very comfortable.

去年夏天我们住的酒店非常舒适。

2. The city where I was born has changed a lot over the years.

我出生的那个城市多年来发生了很大的变化。

3. The park where we had a picnic yesterday was very beautiful.

我们昨天野餐的公园非常美丽。

状语从句：

1. I will meet you where the river meets the sea.

我会在河口与海洋交汇的地方与你见面。

2. She always goes to the gym where she can exercise with her friends.

她总是去能和朋友一起锻炼的健身房。

3. He was standing on the bridge where he watched the sunset.

他站在桥上看日落。

以上例句中的where都起到了关系副词的作用，引导定语从句或状语从句，使句子更加完整和具体。掌握where的用法可以使我们的表达更加清晰和准确。