勇于挑战突破自我用英语怎么说

勇于挑战突破自我的英文表达是 "to have the courage to challenge and surpass oneself".

来源：这是一个常用的习语，表达了一种积极进取的态度，强调主动去挑战和超越自己的能力和极限。

英文例句及其中文翻译：

"He always pushes himself to run faster and farther, always striving to challenge and surpass his own limits." 他总是努力跑得更快更远，总是努力挑战和超越自己的极限。
"She never backs down from a challenge, always determined to push herself and surpass her own expectations." 她从不退缩于挑战，始终坚定不移地推动自己并超越自己的期望。
"He's a true example of someone who has the courage to challenge and surpass himself, always reaching for new heights." 他是一个真正的榜样，勇敢挑战和超越自己，总是朝着新的高度迈进。