形容词
中文翻译：无主的
同义词：
['unowned', 'unoccupied', 'vacant']
例句：
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1. The house was ownerless when the family moved out.
当家人搬出去时，这所房子是无人所有的。
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2. The abandoned building was left ownerless by the developer.
被开发商遗弃的建筑现在是无人所有的。
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3. The vacant lot is ownerless until someone decides to buy it.
这个空地直到有人决定购买它之前都是无人所有的。