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I'll study diligently and repay him by securing a bright future for myself.
我会努力学习，用自己的美好未来来回报他。
youdao
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I shall study diligently and obey the rules and regulations.
本人将努力学习并遵守学校的规章制度。
youdao
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Starts from the present to study diligently.
从现在开始努力学习。
youdao
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Starts from the present to study diligently.
从现在开始努力学习。
youdao