他经常野餐用英文怎么说

在英语中，"他经常野餐"可以用以下方式表达：

He often goes on picnics.
He frequently goes on outdoor meals.
He regularly enjoys dining al fresco.

其中，"picnic"是一个英文单词，来自法语的"piquenique"，意思是户外野餐。"Outdoor meal"和"dining al fresco"分别是"户外就餐"和"户外进餐"的意思。

下面是一些例句：

He often goes on picnics with his family on the weekends. (他常常在周末和家人一起去野餐。)
He frequently goes on outdoor meals with his friends during the summer. (他常常在夏天和朋友们一起户外就餐。)
He regularly enjoys dining al fresco at the park near his house. (他经常在他家附近的公园户外进餐。)