1·Even with snow on the ground, the high bushy understory is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder, and other arboreal fodder.
即使地上有雪，高而浓密的下层植被也显露出来；雪和风也会吹落雪松、铁杉、红桤木多叶的树枝和其他的树木草料。
2·Cedar or alder are traditional, but maple is nice too.
雪松或桤木是传统的，但枫是太漂亮。
3·The wood properties of alder is similar to that of poplar and birch which could be used to produce different kinds of pulp.
就桤木商用种植的生产潜力、制浆造纸和材性研究现状等进行综合评述。
4·Exploring the woodlands on a warm summers evening, he spotted this lone caterpillar delicately balanced on the stem of a black alder leaf.
在一个温暖夏天的夜晚他探究森林，发现一条孤零零的毛毛虫微妙的平衡在一个黑色桤木叶的茎上。
5·He gave John some alder bark.
他给了约翰一些桤木树皮。
1·In midmost of the stream, embraced in the weir's shimmering arm-spread, a small island lay anchored, fringed close with willow and silver birch and alder.
在大坝那闪光的臂膀环抱中，安卧着一个小岛，四周密密层层长着柳树、白桦和赤杨。
2·Thus, the fate of a mayfly is primarily determined by the histrionics of neighboring frog, trout, alder, water spider, and the rest of stream life, each playing the environment for the other.
因此，蜉蝣的命运主要取决于附近装模作样的青蛙、鳟鱼、赤杨、水蜘蛛，和溪流里其馀的生物，每一种生物都充当着其他生物的环境。
3·In the battle of the trees, the Alder fought in the very front line.
在树木的战役中赤杨战斗在第一线。
4·Several coppice plantations have been seeded with poplar, willow and alder.
好几个灌木林场都种上了白杨，柳树和赤杨。