birch bark造句怎么写

I put the last of my birch bark on the fire and fanned it into life.

Nomadic hunting nationalities in the north of China, such as Oroqen, Ewenki, Hezhen, all have a long history in using birch bark.

Study of extraction of birch bark (EBB) on immune inhibition tumor effect in bearing tumor mice

We found that birch bark could serve as paper.

In Finland purists insist that only birch bark should be added.