It's is so difficult that I have decided to give up trying.
あまりに難しいから挑戦するのはやめることにした。
Thirdly, if you don't put in the effort and challenge difficult things, there is nothing in the world at which you will succeed.
第三に、あなたが努力することと難しいことに挑戦しようとしなければ、世界中で成功するものは何もない。
The prime minister directly confronted the challenges of his political opponents.
首相が政敵の挑戦と真っ向から対決しました。
He tried several times, but did not succeed.
彼は何度か挑んだが成功しなかった。
The devil challenged God to a baseball game.
魔王が神に野球で勝負を挑んだ。
But I will always be honest with you about the challenges we face. I will listen to you, especially when we disagree. And above all, I will ask you to join in the work of remaking this nation, the only way it's been done in America for 221 years; block by
If you want to make your dreams come true, keep on trying.
もし夢を実現させたいのなら、挑戦を続けなさい。
He shouted defiance at me.
彼は大声で私に挑戦した。
He often takes a defiant attitude toward us.
彼はしばしば挑戦的態度に出る。
She stood defiantly with arms akimbo.
彼女は挑戦的な態度で両手を腰に当てて立っていた。
I want to try again.
もう一回挑戦してみたいです。
One of the important differences between Japanese and Americans is that Japanese tend to choose a safe course in life, while Americans choose to explore and challenge life.