名词
中文翻译：树干
同义词：
['trunk', 'trunk of a tree']
例句：
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1.The tree has several trunks that grow from the base.
这棵树有几根从根部生长的树干。
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2. The trunks of the trees are covered in green moss.
这些树木的树干上覆盖着绿色的苔藓。
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3.The trunks of the trees were damaged by the heavy snowfall.
由于大雪，这些树木的树干受损了。