Very inexperienced or new at something.
とても未経験または新しいことに不慣れ。 (totemo mikeiken matawa atarashii koto ni funare)
"He’s as green as grass in his new job."
"彼は新しい仕事で全くの初心者です。" (kare wa atarashii shigoto de mattaku no shoshinsha desu)
to work extremely hard
to force someone to leave
you can achieve anything you want in life
to start over again because the previous plan failed
to become less angry or upset
to cause a problem that stops progress