我一定要努力学习 I must study hard
我一定会努力学习 I will certainly work hard ; I will study hard
我们一定要努力学习 we must work hard
我一定努力学习
I will surely study hard
以上为机器翻译结果，长、整句建议使用 人工翻译 。
我一定努力学习不辜负他的期望。
I must work hard so as to live up to his hope.
youdao
我一定努力学习，决不辜负父母的期望。
I will work hard to live up to my parents' expectation.
我一定努力学习，不会辜负他们的期望，争取考上初中的重点班！将来要成为社会的栋梁之才，为祖国做出贡献！ ！
In the future will become social a person of great ability and tremen douspotential, will make the contribution for the motherland!
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