I only succeeded through hard work.

　　我就是因?yàn)榕�力工作才成功的�?/p>

　　We've got a lot of hard work ahead.

　　我們往后還有很多艱苦工作要做。

　　Hard work is fundamental to success.

　　勤奮工作是成功的基礎(chǔ)。