これは、日本(世界)で大ヒットしたTV アニメ「鬼滅の刃」のワンシーンです。「失っても」という言葉を2 回続けることで、失ったものの大きさを表現しています。失うと言うことは、生きていくことが辛いことを意味していますが、それでも生き続けなければいけないと言う悲しい現状を表現しています。
Learn Japanese from Anime
No matter how much you lose, no matter how much you lose, you have to live.
This is a scene from the anime TV series “Demon Slayer," which was a huge hit in Japan (and around the world). The phrase "Ushinattemo" is repeated twice to express the magnitude of the loss. When you lose a lot, it is harder to continue living. However, you still have to continue to live your life. It expresses a sad state of affairs.
The phrase “~~~shika nain desu" is a way of indicating that there is no other way but ~~. When you say, “Benkyou sure shika nain desu”, it is a way of saying that there is no other way but to study. This is a slightly different way of saying it from anime.