空洞
kōng​dòng

vacuous

  • created sense approved 空洞 · kōng​dòng · cavity

    空洞

    kōng​dòng

    cavity

    a hollow space or hole within a solid object

    由于长期的侵蚀，岩石内部形成了一个巨大的空洞。

    noun

    created sense

  • created sense approved 空洞 · kōng​dòng · vacuous

    空洞

    kōng​dòng

    vacuous

    devoid of substance, meaning, or practical value; empty of content

    这篇报告辞藻华丽，但内容十分空洞。

    adjective

    created sense