〈英〉 病残,病弱,伤残。
the fact of not being valid
无效,无价值
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the resolution on the invalidity of their independence declaration .关于他们的独立宣言无效的决议。
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invalidityn.病残;病弱;伤残;无效;无价值
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validityn.正确性;正确;合法性;正当