Whereas the region's native evergreen pines shade the snow and absorb radiation, birches would shed their leaves in winter, thus enabling radiation to be reflected by the snow.
然而那个地区当地的常绿松树可以为雪遮阴，吸收辐射，而白桦树在冬天则会落叶，从而使辐射被雪反射。
2
The little birches grew fast, and their life was carefree and happy.
小白桦们迅速地成长着，她们过着快乐无忧的生活。
3
I admire the wildflowers, 30 cedars and 31 birches that fill the forests.