to endure a difficult situation with strength and determination
力と決意で困難な状況を耐え忍ぶ (chikara to ketsui de konnan na joukyou o taeshinobu)
"Even though it was a tough day, she managed to tough it out and finish the project."
"難しい一日だったけれど、彼女はtough it outしてプロジェクトを終わらせた。" (muzukashii ichinichi datta keredo, kanojo wa tough it out shite purojekuto o owaraseta.)
whatever is available or happens by chance
to accept blame for something on behalf of someone else
to have a personal reason to complain or criticize
very angry
to risk everything on a single opportunity
to become too frightened to do something
