The products claim that a flat, featureless, continuous sound somehow encourages slumber.
这个产品宣称以平和，连续的声音鼓励睡眠。
The feature would be even better if the built-in speakers weren’t on the back of the device, muffling the sound if you place it screen up on a flat surface.
如果内置扬声器不是装备在机器的背面，这个功能会更加出色。 因为当你屏幕向上把Kindle放在平坦的表面上时，声音会被压低。
On a steep site, with waterway views to the southeast, and an ongoing subdivision to the north, the Bach elongates against the contour to generate flat ground and a view to the Sound.
小屋建在陡峭的场地上，通过水道将视线引向东南方向，一直延伸到北部的小块地，小屋顺着地平面向外延伸，产生朝向峡湾的视野。
"Flap" sounds like something (a flag, a sail) flapping, and "flop" is the dull sound of something falling down flat.
而flop听着就象什么东西直直落地发出的沉闷一响.
In Antarctica, the hard, flat snow reflects sound waves with incredible efficiency. Some researchers say they have heard human voices a mile away.
在南极洲，积雪会反射音波，而且效率高的令人难以置信。一些去过南极洲的研究人员说，他们听到过一英里以外人的声音。
This is a voiceless sound. Put your top teeth slightly over your bottom lip and blow out air quickly. Your tongue should be flat in your mouth.
这是一个轻声。把你的上齿轻轻放在你的下唇并快速发出气流。你的舌头在你的嘴里的时候应该是扁平的。
These may be elongate and arranged to transmit sound across a flat surface.
这些端口可以是细长的并且被布置用来跨越平坦表面传输声音。
These drivers (ES3X), on the other hand, are largely flat, providing a smooth, accurate reproduction of sound sources.
而es3x则是极为均衡的，它提供了一种平滑的，准确的音源回放效果。
These drivers (ES3X), on the other hand, are largely flat, providing a smooth, accurate reproduction of sound sources.
而es3x则是极为均衡的，它提供了一种平滑的，准确的音源回放效果。
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