遣(や)り通(とお)すto carry through, to achieve, to complete

始(はじ)めた事(こと)は最後(さいご)まで遣(や)り通(とお)します。

I will carry through what I have started until the end. {to carry through, to achieve, to complete}

社員(しゃいん)たちは仕事(しごと)を最後(さいご)まで遣(や)り通(とお)すべきだ。

The employees should carry through their work until the end. {to carry through, to achieve, to complete}

これはやると決(き)めた事(こと)なので、最後(さいご)まで遣(や)り通(とお)します。

Since this is something I've decided to do, I will carry it through to the end. {to carry through, to achieve, to complete}

任務(にんむ)を最後(さいご)まで遣(や)り通(とお)せばこそ、一人前(いちにんまえ)だと認(みと)めてもらえるのです。

Only when you carry through and complete a task to the end, can you be recognized as a full-fledged individual. {to carry through, to achieve, to complete}

最後(さいご)まで遣(や)り通(とお)す覚悟(かくご)を持(も)った人(ひと)にプロジェクトリーダーを任(まか)せる事(こと)にした。

We decided to entrust the project leader role to someone who is determined to carry through to the end. {to carry through, to achieve, to complete}