"更加努力" 的英文表达为 "try harder" 或 "work harder".

"Try harder" 是 "尝试更加努力" 的意思。这个短语是由 "try" 和 "harder" 两个单词组成的，"try" 意为 "尝试"，"harder" 意为 "更加努力"。

例句：

You need to try harder if you want to pass the exam. (你需要更加努力才能通过考试。)
He told his son to try harder in school. (他告诉儿子在学校里更加努力。)

"Work harder" 是 "工作更加努力" 的意思。这个短语是由 "work" 和 "harder" 两个单词组成的，"work" 意为 "工作"，"harder" 意为 "更加努力"。

例句：

If you want to achieve your goals, you need to work harder. (如果你想实现目标，你需要工作更加努力。)
The company is asking its employees to work harder to meet the deadpne. (公司要求员工工作更加努力以便达到最后期限。)