insoluble：That cannot be dissolved；Difficult or impossible to solve or explain; insolvable不溶的；不能解决的 lobby: n. 门廊, 门厅; 休息室, <美>游说议员者vi.
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insolvable problem 无法解决的问题
an insolvable problem 无法解决的问题
An Apparently Insolvable Problem 显然难解问题
·2,447,543篇论文数据，部分数据来源于NoteExpress
"an apparantly insolvable problem"
同义词： unsoluble unsolvable unresolvable
以上来源于: WordNet
ADJ → same as insoluble
unsolvable , irresolvable
词根： insoluble
insoluble 不能解决的；[化学] 不能溶解的；难以解释的
insolubility 不溶性；不能解决
Von Neumann was particularly interested in seeing if he could develop optimal strategies for these kinds of mutual games, because at first glance they seemed almost insolvable in theory.
冯•诺依曼最感兴趣的是想看看自己能否给这种互动游戏找出最理想的策略，因为乍一看来，它们在理论上几乎是无解的。
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The Republican Party now faces an insolvable conundrum.
FORBES: The Grand Old Republican Party Is Over
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