unable の英語での意味
unableunable /ʌnˈeɪbəl/ adjective [not before noun] 
すべての翻訳を見る not able to do something〜することができないunable to do something
Lucy was unable to find out what had happened.ルーシーは何が起きたのかを知ることができなかった。 Unable to sleep, I got up and made myself a drink.眠れなかったので、起き上がって飲み物を作った。Register語域In everyday English, people usually say that they can't/couldn't do something rather than are/were unable to do something:· She couldn't find out what had happened.日常の英語では、are/were unable to do something よりも can't/couldn't do something と言うのが一般的です：· She couldn't find out what had happened.
すべての翻訳を見る not able to do something〜することができないunable to do something Lucy was unable to find out what had happened.ルーシーは何が起きたのかを知ることができなかった。 Unable to sleep, I got up and made myself a drink.眠れなかったので、起き上がって飲み物を作った。Register語域In everyday English, people usually say that they can't/couldn't do something rather than are/were unable to do something:· She couldn't find out what had happened.日常の英語では、are/were unable to do something よりも can't/couldn't do something と言うのが一般的です：· She couldn't find out what had happened.