n.硬纸板，卡纸板(常用于制造盒子)
adj.不真实的，虚假的

You must recycle the cardboard boxes.
你们必须循环使用纸盒子。
Eric put the cardboard boxes in a heap and stamped them down.
埃里克把纸板箱堆成一堆，将它们踩扁。
I used cardboard to create a prototype of the new product design.
我用硬纸板制作了新产品的设计原型。
The package arrived damaged, with a hole in the cardboard box.
包裹送到时已损坏，硬纸板箱上有个洞。
We need to recycle more cardboard to reduce waste and protect the environment.
我们需要更多地回收硬纸板以减少废物并保护环境。
She covered the walls of her room with colorful cardboard posters.
她用五颜六色的硬纸板海报贴满了房间的墙壁。
The children made a castle out of cardboard boxes for their school project.
孩子们为学校的项目用硬纸板箱做了一座城堡。
Please ensure that all cardboard packaging is flattened before placing it in the recycling bin.
请确保所有硬纸板包装在放入回收箱前都被压平。
The artist created a stunning sculpture entirely out of recycled cardboard.
这位艺术家完全用回收的硬纸板创作了一个令人惊叹的雕塑。
They used corrugated cardboard to provide extra cushioning for the fragile items during shipping.
他们在运输易碎物品时使用瓦楞纸板提供了额外的缓冲。
The company switched to biodegradable cardboard for its product packaging to promote sustainability.
为了促进可持续性，该公司改用可生物降解的硬纸板作为产品包装。
He carefully cut out cardboard stencils to paint intricate designs on the wall.
他仔细剪出硬纸板模板，以便在墙上绘制复杂的图案。