- Any of various deciduous shrubs or trees of the genusAlnus, native chiefly to northern temperate regions and having alternate, simple, toothed leaves and tiny fruits in woody, conelike catkins. 桤木：一种桤木属 的落叶灌木或乔木，原主要生长于北温带地区，有互生的锯齿形单叶，在其木本的锥体柔荑花序中有微小的果实
- The wood of these plants, used in carvings and for making furniture and cabinets.桤木：这种植物的木材，用于雕刻、制作家具和橱具
- Middle English 中古英语
- from Old English alor 源自 古英语 alor