out-trunk

基本解释

He kicks a foot out over the abyss, balancing on one of his tree-trunk legs.
他朝着深渊凌空踢出一腿，用一条腿保持平衡。
17The burnt-out trunk of a tree is seen in a forest near a village of Zdorovie, Russia on August 10, 2010. (VIKTOR DRACHEV/AFP/Getty Images)
2010年8月10日，俄罗斯Zdorovie村庄附近的森林里一棵被烧毁的树干。
The naked person was firmly fastened within a back-to-back pair of narrow rowing boats (or a hollowed-out tree trunk), with the head, hands, and feet protruding.
被剥光了衣服的死刑犯被牢牢地绑在一对反扣的狭窄的小船里(或是中空的树干), 头,手, 和脚露在外面.

For one, in order to drop the top, the trunk space has to be cleared out, and at times there seem to be a lemon-like malfunction with the electronic locks.
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Is the answer that, like a tall pine tree, the Japanese pagoda—with its massive trunk-like central pillar known as a shinbashira—simply flexes and sways when riding out a typhoon or an earthquake?
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