The boxes are made of pasteboard.

这些盒子是纸板做的。

youdao

This was rather easy to do, for the paper was not much thicker than pasteboard.

这很容易做，因为纸并不比纸板厚多少。

youdao

This was rather easy to do, for the paper was not much thicker than pasteboard.

这很容易做，因为纸并不比纸板厚多少。

youdao