n.wood of any of various alder trees; resistant to underwater rot; used for bridges etcnorth temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant
同义词：alder tree
alder 相关例句
双语例句
用作名词(n.)
Alder trees belong to the birch family. 赤杨属于桦木科。
权威例句
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