那位老人因医治无效于昨晚去世了。
The old man went off last night after medical treatment failed.
晚年，他得了病，医治无效，终于死去。
In his old age, he fell ill, could not be cured, and eventually died.
威伦廷四肢瘫痪活了18个月，最后医治无效死亡。
Walentin lived for another 18 months as a quadriplegic before finally succumbing to his wounds.
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