They have forgotten that only through persistent effort can one achieve success.

他们忘了，只有通过不懈的努力才能获得成功。

youdao

Steadiness and ease of posture is to be achieved through persistent slight effort and through the concentration of the mind upon the infinite.

体态的稳定与简易能够完成持续性的由浅入深的心灵集中以至最终扩展于无限。

youdao

They are persistent and believe that they can develop the ability to master new skills through practice and effort.

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