柳树
[词典]willow; osier; withy
例句：
1、The willow trees have begun to bud.
柳树开始抽芽了。
2、Peeling off the osier by hand takes time and energy extremely, and the existent equipment hasn't achieved perfect effect.
杞柳手工去皮是一件费工、费时和劳动强度大的工作，而现存的去皮设备未达到很好的去皮效果。
3、A tough, supple twig, especially of willow, used for binding things together; a withy.poplars thrusting their Branches upward
柳条，韧枝坚硬且柔韧的枝条，尤指柳条，用于捆扎物品；柳条绳白杨的枝干向上生长
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