a meal in the middle of the day during which work is done or discussed

Often with our clients, we'll have working lunches where we'll just stay at our office and bring in sandwiches. 我们经常和客户一起吃工作午餐，我们就呆在办公室里，带三明治来吃。

The two leaders met for a working lunch. 两位领导人一起吃了顿工作午餐。