The noise pollution reached a high decibel level.
噪音污染达到了很高分贝。
Alarm has three switch positions which allow setting to a high decibel for noisy areas, low for quiet environments, or off (muted) for silent visual fl ashing LED operation.
警报声音有三个开关位置，在嘈杂地区可以将声音设置为高分贝，在安静环境中设置低分贝，还可以设置静音、仅使用LED闪烁的视觉操作。
Many of the dads were wearing earpieces, which makes sense as decibel levels at a One Direction concert have reportedly gone as high as 122 – considerably more than the maximum safe level of 85.
许多爸爸们戴着耳塞，这是必须的，因为据说在单向乐队的演唱会上声音高达122分贝—远远超过最高安全级别的85分贝。
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