only proportionally louder
Sometimes I heard four or five at once in different parts of the wood， by accident one a bar behind another， and so near me that I distinguished not only the cluck after each note， but often that singular buzzing sound like a fly in a spider's web， only proportionally louder.
基于1个网页-相关网页
only proportionally louder
只是按比例放大
以上为机器翻译结果，长、整句建议使用 人工翻译 。