n.响亮；音量；大声
My tone had a borrowed loudness reverberated from the height of the land. 我的声音在岛上的山壁产生回音，所以分外响亮。
The loudness of a sound is evidenty produced by how much the membrane is cause to move. 而声音的大小则明显的决定于耳膜运动。
He shouted with extreme loudness. 他大声地叫嚷着。
