Music with the sounds of the ocean or bird song can be helpful for some.
大海的声音或者鸟叫声对你的睡眠时很有帮助的。
"Bird," said the shoemaker, "now sing that song again for me."
鞋匠说道：“喂，小鸟，请你再把那首歌唱一遍吧。”
Chapter I summarizes the reasons and background for the prosperity of Song Dynasty's fine brushwork flower-and-bird painting.
本文第一章概述了宋代工笔花鸟画繁荣的原因及时代背景。
Some animals can get further than these simple noises. For instance, a bird song is much more elaborate, for it tells other males to keep away, while at the same time inviting a female to come closer.
一些动物能发出比这些简单的声音更复杂的声音，例如，鸟儿的歌声就更复杂精细，因为它能告诉其它雄性鸟离开，同时邀请雌性鸟儿靠近。
Perching on a twig, the bird sang day after day for the tree. And the tree listened the bird's song day in, day out.
鸟儿坐在树枝上，天天给树唱歌，树呢，天天听着鸟儿唱。
Once they identified the positions of the song-responsive genes, they looked for similar genes in the chicken, the only other bird to have its genome fully sequenced.
他们识别出了控制草雀歌唱的相关基因位置，并且立即和相似的鸡的基因惊醒了对照实验。结果他们发现，只有其他的鸟类才会和他们一样拥有相似的基因。
Ronnie Ronalde(born in 1923, London) is a British music hall singer and siffleur. Ronalde is famous for his voice, whistling, yodeling, imitations of bird song and stage personality.
1923年生于伦敦），英国乐厅歌手、吹哨手。他擅长吹哨、真假音换唱、模仿鸟音及舞台人物。
The sun burst forth, over her head a little bird caroled his song, and the church-bells sounded for the early service.
这时太阳喷薄升起，一只小鸟在她的头上歌唱，教堂的钟声响起来了，像一曲晨歌。
The sun burst forth, over her head a little bird caroled his song, and the church-bells sounded for the early service.
这时太阳喷薄升起，一只小鸟在她的头上歌唱，教堂的钟声响起来了，像一曲晨歌。
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