We must get together soon for lunch.
我們得馬上集合去吃午飯。
There is no such thing as a free lunch.
世上沒有免費午餐之類的好事兒。
Lunch is his main meal of the day.
午飯是他的正餐。
Finish your lunch, there's a good boy.
把午飯吃完，乖孩子。
She's having lunch with the Director, no less.
她居然在與主管一起進午餐。