eat up：吃光；吃完；耗費（大量金錢、時間或資源）。
Come on. Eat up your rice.
快點，把飯吃掉。
You'd better eat up all the food.
你最好能吃光所有的食物。
Come along, be a good boy and
eat up your vegetables.
來，做個好孩子，把你的蔬菜吃光。
Eat up! We've got to go out soon.都吃光！我們得馬上出去。
Eat up and use up, good health for you.
吃光用光，身體健康。