large tree of Pacific coast of North America having hard red wood much used for furniture
双语例句
Alder trees belong to the birch family. 赤杨属于桦木科。
However, the influence of red alder on growth and competition in the mixed stands still ranks first at this moment. 虽然如此,但就目前而言,台湾赤杨对于林分林木生长竞争之影响仍大于台湾杉。