Do you know that the "Happy Birthday to You" song is the first song sung in outer space?

你知道吗？“祝你生日快乐”这首歌是在外太空唱的第一首歌。

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You will be happy to know that March 20th is the International Day of Happiness.

你会因为知道3月20日是国际幸福日而感到高兴。

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If you have taken on the monumental responsibility of having kids then you know what a joy it is to see their happy smiling faces.

如果你曾经体会过拥有孩子时那种沉重的责任感，那你就应该知道看到他们的笑脸是一件多么愉快的事情。

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's (nyse: DIS - news - people ) ABC? (The real estate boom gets more television time than college basketball these days.) Will HGTV's hit show House Hunters be as fun to watch if you know that the happy couple is likely, on paper, to see the down payment they worked so hard to save wiped out in a tumbling market?

FORBES: Click Here To See Your Home Depreciate