As its title, the happy melody of this song send a message to us- be happy, just like its lyrics, "Because I am happy".

正如这首歌的名字一样，歌曲本身欢快的旋律就向我们传递着快乐的信息。 正如其中的歌词：“因为我很快乐。”

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This suggests that babies of that age can tell the difference between a happy melody and a sad tune.

这表明处于这个年龄的婴儿能够分辨出旋律是快乐的还是悲伤的。

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Old classmates, happy New Year, happy New Year, happy! Are those memorable days, I always sing the melody. You are now ok?

老同学，新年好，祝新年快乐，心想事成！那些难忘的日子，是我永远吟唱的旋律。你如今还好吗？

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