a period or stage in someone’s life
人生の一章または一つの段階 (jinsei no issho mata wa hitotsu no dankai)
"Leaving college was the end of an important chapter of her life."
"大学を辞めることは、彼女の人生の重要な章の終わりだった。" (daigaku o yameru koto wa kanojo no jinsei no juyona shou no owari datta)
to be responsible for a mistake or bad situation.
with honest intentions; sincerely
to be in a stressful situation with a lot of demands
to become less angry or upset
to go faster; to hurry up
to make someone or something more lively or energetic