something that no longer exists or happens
もう存在しない、または起こらないこと (mou sonzai shinai, mata wa okoranai koto)
"With smartphones, landline phones are a thing of the past."
"スマートフォンのおかげで、固定電話は過去のものになった。" (sumaatofon no okage de, koteidenwa wa kako no mono ni natta)
to stay alert and watch carefully
Keep trying no matter how many times you fail.
to secure something tightly in preparation for trouble
to recover and be healthy again
to be knowledgeable or skilled about something
to prevent someone or something from entering
