sinking volume

Now she caught the low undertone, as of the wind sinking down to repose itself; then ascended with it, as it rose through progressive gradations of sweetness and power, until its volume seemed to envelop her with an atmosphere of awe and solemn grandeur.

如今她聆听着那低低的音调，犹如大风缓吹，逐渐平患一般；然后，她又随着那步步上升的甜美和力量飞腾，直到那音量似乎用敬畏和庄严的宏体氛围将她包裹起来。

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