单词：alder
[机] 赤杨木
n. north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant
考试类型：[托福]
alder的用法和样例：
例句
- Alder trees belong to the birch family.赤杨属于桦木科。
词汇搭配
- Diels-Alder reaction狄尔斯-阿尔德反应,...
- white alder美国赤杨
- European alder欧洲桤木
- black alder赤杨
- woolly alder aphid赤杨绵蚜
- alder buckthorn药炭鼠李
- red alder赤杨
- alder bark赤杨树皮
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