相關(guān)單詞近義詞 impossibility 不可能之事, impracticality 不實(shí)用(不切實(shí)際..., uselessness 無(wú)用, impracticableness 不能實(shí)行(做不到...反義詞practicability, 可行性臨近詞imp, imperia 返回 impracticability