tree-planting date 中文意思是什麼
tree-planting date
解釋
植樹日-
If the planting date is not known, the tree is compared to others of the same species that have been identified as aged 100 years or more
如種植日期不詳,則把有關樹木與其他相同品種樹超過一百年的樹木作一比較。
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