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他们相信孩子学习越努力，他们将来的生活就会越幸福。
They believe the harder their children study, the happier life they will have in the future.
youdao
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记住一句话，越努力，越幸运，越幸福，越快乐。
Remember a word, more efforts, more happiness, more happy, more happy.
youdao
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他工作越努力，就感到越幸福。
The harder he works, the happier he feels.
youdao