徹(てっ)する

家業(かぎょう)に徹(てっ)する兄(あに)はカッコイイです。

My brother, who devotes himself to the family business, is cool. {to penetrate, to sink in, to devote oneself (to), to do intently and exclusively, to do throughout (e.g. the night)}

親友(しんゆう)と夜(よる)を徹(てっ)して人生(じんせい)について語(かた)り合(あ)った。

I spent the entire night discussing life with my best friend. {to penetrate, to sink in, to devote oneself (to), to do intently and exclusively, to do throughout (e.g. the night)}

映画(えいが)を作(つく)るためには裏方(うらかた)に徹(てっ)する人々(ひとびと)が必要(ひつよう)だ。

In order to make a movie, we need people who are willing to devote themselves entirely to behind-the-scenes work. {to penetrate, to sink in, to devote oneself (to), to do intently and exclusively, to do throughout (e.g. the night)}

神(かみ)に酷(ひど)い状況(じょうきょう)から救(すく)われてから、信仰(しんこう)に徹(てっ)するようになりました。

After being saved from a terrible situation by God, I began to devote myself to faith. {to penetrate, to sink in, to devote oneself (to), to do intently and exclusively, to do throughout (e.g. the night)}

昼夜(ちゅうや)を徹(てっ)して工事(こうじ)を行(おこな)えばこそ、短期間(たんきかん)でのリフォームが可能(かのう)になるのだ。

Only by devoting oneself to construction day and night, can a renovation be completed in a short period of time. {to penetrate, to sink in, to devote oneself (to), to do intently and exclusively, to do throughout (e.g. the night)}