英语翻译：毫无疑问，不勤奋必定会导致失败。（doubt)

There is no doubt that laziness will result in failure.
本来想找一个词使不勤奋 和 失败 押韵的，可是我不确定acedia是否有懒惰的意思~
希望可以帮到你~~

No doubt, no hard will result in failure

there's no doubt that sloth leads to failure.

No doubt,lazy result in failure.