公园中最具知名度的树──「空心树（Hollow Tree），幸好仍屹立不摇。这棵树的直径达5.5公尺，是公园里直径最长的树。
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The Hollow Tree 中空树木
hiding in a hollow tree 我就藏在那树洞里
Hollow Tree Games 开发商
hollow out a tree 掏空了一棵树
hollow-bearing tree 空心树
youdao
It takes place in a large hollow tree.
VOA: special.2009.11.27
Using a hollow tube, they drill into the tree and extract a 5-mm wide cylinder that shows each ring starting with the most recent, just under the bark.
VOA: standard.2010.04.05
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