quina

It is thought that the people of our hero have passed on their knowledge of extraction of a chemical known as quinine from quina-quina to missionaries.

认为我英的人已经将他从奎那-奎那中提取一种称为奎宁的化学物质的知识传递给了传士。

He brought the knowledge to his people, who called this bark quina-quina and they learned to use it to cure the malarial fever.

他把这个知识带给他的百姓，他把这种树皮叫做奎那-奎那，他学会了用它来治的发热。