名词
中文翻译：柳树
同义词：
['willow', 'poplar', 'birch']
例句：
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1.The willow tree sways gently in the breeze.
柳树在微风中轻轻摇摆。
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2.The poplar trees are tall and have long branches.
杨树很高，树枝很长。
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3.The birch trees are known for their white bark and delicate leaves.
桦树以其白色的树皮和细长的叶子而闻名。