Come over here and help me pack up the leftover food.

过来帮我把剩下的食物打包。

youdao

Leftover food and unwashed dishes cover the dirty counters.

剩饭和没洗的盘子铺满了肮脏的台面。

《柯林斯英汉双解大词典》

When in college, he was part of a student group that gave out leftover food to homeless people.

上大学时，他是一个学生小组的成员，这个小组会把吃剩的食物分发给无家可归的人。

youdao

This has resulted in restaurants offering half portions and free take home bags for leftover food.

BBC: Play your part in the global food crisis

The odor of sweat, leftover food, and blackboard chalk filled the air.

NEWYORKER: Waiting

In North America, several convention centres, including those in San Francisco and Denver, donate leftover food to a program called Network for the Needy.

BBC: Business travel gives back