If our hearts are transformed by God's zeal, we are free to sing with the psalmist: "I will be glad and rejoice in you" (psalm 9:2).

若我们的心被神的热心所改变，便能自由地与诗人同声歌颂：“我要因你欢喜快乐”(诗篇9：2)。

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I have a dream that one day the air is fresh, the forest is flourishing, the birds are free to sing and our earth holds a charming smile again!

我有一个梦想，那就是有一天：空气清新，森森茂密，小鸟在自由地歌唱，我们的地球也再次拥有一个迷人的微笑！

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At weekends they rushed to restaurants to sing for free.

在周末，他们冲到餐馆免费唱歌。

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" ...when all of God's children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual: Free at last! Free at last!

VOA: special.2010.04.16

We like to be under the moon and the stars, to sing, to dance and feel free.

BBC: Enduring new-age appeal of Goa

Free conference call services mean your entire clan can sing happy birthday to you at the same time.

FORBES: 10 Ways Tech Helps You Have a Happy Birthday