形容词
中文翻译：无核的
同义词：
['coreless', "hollow例句：1. The coreless design of this watch is very elegant.（这款手表的无核设计非常优雅。）2. The hollow tree trunk was used to make the house's foundation.（空心的树桩被用来做房子的基础。）"]
例句：
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1. The coreless design of this watch is very elegant.
这款手表的无核设计非常优雅。
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2. The hollow tree trunk was used to make the house's foundation.
空心的树桩被用来做房子的基础。
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3.The hollowed-out space was filled with sand and water.
这个空洞里填满了沙子和水。