它以风速飞行，发出了音调优美的声音(交流声？)
It flew with the speed of the wind and gave forth a melodious sound a humming noise?
婉转优美的声音，让空气中充满温暖，让我们感到高兴。
The sound persuasive exquisite, the atmosphere is warm, let us arouse delight.
只有注意克服各方面的旧的观念和习惯，才能获得优美的声音。
It is important to overcome some outdated conception and habits so as to get the beautiful sound.
当一些音调在共同演奏时产生优美的声音效果，我们称之为合奏。
When certain notes are played together and produce a pleasant effect, we say that they harmonize.
他用他优美的声音做了解说：“正如我们用音乐表达了我们隐藏深处的一面，我们能否也应用科技去看大自然隐藏的一面。”
He explains in his magnificent voice: "Just as we use music to express parts of us that would otherwise be hidden, so too can we use technology to make visible much of nature's invisible world."
优美的旋律感染着我，好像隐约听到心碎的声音。
Beautiful melody infected me, as if vaguely heard the heart-breaking voice.
声音质量的所有重要领域可以被分类为明亮，颤音和仅仅是听起来有趣伴随着优美的重低音。
The all important area of sound quality can be categorized as bright, vibrant, and just plain fun to listen to, with a tuneful deep bass.
还可以听听让人放松的音乐，比如优美的海浪的声音和小鸟鸣叫的声音。
Try listening to music recordings like pounding surf or songbirds. It might help you relax.
还可以听听让人放松的音乐，比如优美的海浪的声音和小鸟鸣叫的声音。
Try listening to music recordings like pounding surf or songbirds. It might help you relax.
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