题目

用英语介绍一种发明（类似指南针电脑之类的）80字左右

提问时间：2021-03-13

答案

Most historians of technology credit the Chinese with the its discovery of black powder.
The invention of gunpowder is due to an alchemist, it has experienced the advent of the breeding process of a long time. In antiquity, an, an activity, sulfur and nitrate is a common medicine
大多数历史学家认为黑火药是中国人发明的.火药的发明应归功于炼丹家,它的问世经历了一个较长时间的孕育过程.在古 代炼丹家的炼丹活动中,硫磺和硝是常用的药品