音标:['ɒ:ldә] ;
n. 桤木
[机] 赤杨木
n. wood of any of various alder trees; resistant to underwater rot; used for bridges etc
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
词型变化:名词复数形式 : alders
考试类型:[托福]
词性分布:
名词100%

alder的用法和样例:

例句

用作名词(n.)
  1. 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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