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starting work (on); setting to work (on); setting about (doing); beginning; commencing; embarking on
commencing (a crime)
playing (a move)
来月から新しいプロジェクトに着手する予定だ。
We plan to start a new project next month.
問題の解決に着手するのが遅すぎた。
It was too late to start working on solving the problem.
計画を練った上で建設工事に着手した。
After planning, we started the construction work.