近日，杜克大学电子信息工程学院副教授Steve Cummer声称，从理论上这种声音屏障是可造的。
Recently, Steve Cummer, Associate Professor of Electrical and Computer Engineering at Duke University announced that it is theoretically possible to create such a sound shield.
太阳真的落山的，天灰蒙蒙滴，马上变黑得，烦皮老造个声音也没得，四周墨墨黑，静悄悄，啥个情绪都没得，就是有点孤独。
The sun dropped down on west and the sky was grey, soon it turning dark and noises were fading. The world became peace and invisible, all the emotions was gone but the loneliness.
阿推子范围从分贝至12db的切换帮助你从你在你所面临的形势造最好的声音。
A fader range switchable from 6db to 12db helps you to get the best possible sound from your rig in the situation you are faced with.
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