最便宜的冠军方案

The school holds an environmental design contest, and many teams bring expensive models.

Xiao Bai's team cannot afford new materials, so they only bring old boxes and scrap boards.

A judge asks whether they are underprepared, and Xiao Bai says, “We cannot spend money, but we can spend time.”

They cut open the boxes and make sorting shelves that can be moved repeatedly.

Another team's lighting model is beautiful, but ordinary classes cannot afford to use it.

Xiao Bai's plan is not flashy, but it is affordable to repair and replace parts.

The judges have them take apart the shelf and put it back together on site.

Five minutes later, the sorting shelf stands steadily in front of the podium again.

In the end, the cheapest plan wins first prize.

Xiao Bai says the school cannot afford waste, so it should choose something everyone can afford to use.