But the amount of hearing loss might differ by as much as 30 dB between people who had the toughest ears and those with the most tender ones — a huge variation.

但是，人与人之间听力丧失的程度不同，那些耳朵比较强健的人与耳朵与较柔嫩的人相比，差异可达30分贝。

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Hartmut Mehdorn, chief executive of DB, has turned a chronic loss-making railway into a powerful international business which plans to float some 30% of its shares next year.

德国铁路股份公司的执行官Hartmut Mehdorn（哈特穆特媒栋恩，参5）将一个很长时间都亏损的铁路业变成了一个强有力的跨国企业，明年还计划将其30%的股份出售发行呢。

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In this case, we must first accept 14 dB of overall loss below the zero.

在这种情况下，我们先必须接受在零点频率以下的频段全面损失14dB。

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