Agricultural chemistry is still in its infancy; who can tell that to-morrow,by means of a new invention or discovery,the produce of the soil may not be increased five or ten fold?是什么意思_Agricultural chemistry is still in its infancy; who can tell that to-morrow,by means of a new invention or discovery,the produce of the soil may not be increased five or ten fold?在线翻译_英语_读音_用法_例句