"吃饭"的英文是 "eat a meal" 或者 "have a meal"。

关于这个短语的来源,"eat" 在英语中是"吃"的意思,而 "meal" 在英语中指的是一餐食物。所以,"eat a meal" 就是在英语中表示 "吃饭" 的意思。

下面是一些关于 "eat a meal" 的英文例句及其中文翻译:

"I usually eat a meal at noon." (我通常在中午吃饭。)
"We always eat a meal together as a family on Sunday." (我们总是在周日一家人一起吃饭。)
"She always eats a quick meal before going to work." (她总是在上班前吃一顿快餐。)

另外,在英语中,"have a meal" 也可以用来表示 "吃饭" 的意思。下面是一些关于 "have a meal" 的英文例句及其中文翻译:

"We're going to have a meal at the new restaurant downtown." (我们要在市中心的新餐厅吃饭。)
"I usually have a meal at home before going to work." (我通常在上班前在家吃饭。)
"We had a late meal at the hotel last night." (我们昨晚在酒店吃了一顿晚餐。)