birch bark

基本解釋

We found that birch bark could serve as paper.
我們發(fā)現(xiàn)樺樹皮可以作紙用。
dict.cn
These shoes were commonly made from Birch bark, but they could also be made from linden or lime-tree bark.
這些鞋通常是用樺樹皮制作，不過菩提樹或者椴樹樹皮也能做。
Detailed chemical and microscopic analysis on the leather legging, some 32 inches long, reveal it was made of goatskin, and tanned using birch bark and other plants.
經(jīng)過詳細(xì)的化學(xué)和顯微鏡下的觀察這條皮褲,發(fā)現(xiàn)這條皮褲長約32英寸，竝且它是由山羊皮制成,經(jīng)過用樺樹皮和其它植物爲(wèi)原料的鞣皮制法。

But the birch bark not white after all, as you got closer.
NEWYORKER: Amundsen
Brittle-looking birch trees with black marks on their white bark, and some small, untidy evergreens, rolled up like sleepy bears.
NEWYORKER: Amundsen