insoluble
/ɪnˈsɑljəbəl/ 名词 C2中文： 不溶物
- Any substance that cannot be dissolved.
复数 insolubles
来自图书馆
It is a most insoluble mystery.”
However, I will only say at the present stage that your problem does not appear to me to be insoluble, and that you may expect to find us at Victoria at two o'clock."
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