彼は多くの艱難を乗り越えて事業を成功させた。
He overcame many hardships and made his business a success.
艱難汝を玉にすという言葉を胸に、彼女は修業を続けた。
Keeping in mind the saying that adversity polishes you into a jewel, she continued her training.
開拓者たちは長年の艱難に耐えて荒れ地を切り開いた。
The pioneers endured years of hardship and cleared the wilderness.
どんな艱難に遭っても、彼は希望を捨てなかった。
No matter what adversity he met, he never gave up hope.