作业帮英语翻译```````````````
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/30 14:16:39
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英语翻译```````````````
英语翻译
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英语翻译```````````````
出自<<梦溪笔谈>>前文提到“取其中虚,附地枕之,数里内有人马声,则皆闻之.”
兵土用皮革箭袋作枕时“虚能纳声”的空穴效应.