鸟的歌声是曙光从大地反应从前的回声。
The birdsong is the echo of the morning light back from the earth.
不管天空有无回声，人在大地上肯定会有所反应。
No matter whether there is answer from the sky or not, people on earth would certainly have the response.
不管天空有无回声，人在大地上肯定会有所反应。
No matter whether there is answer from the sky or not, people on earth would certainly have the response.
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