勇敢而大度的朋友，你能回答我一个最后的问题吗？我很无知，因此这问题叫我烦恼——只有一点点烦恼。

Brave and generous friend, will you let me ask you one lastquestion? I am very ignorant, and it troubles me- just a little.

youdao

你能回答这和问题吗———盘尼西林是什么时候被发现的？

Can you answer the question when Penicillin was discovered?

youdao

你能回答这和问题吗———盘尼西林是什么时候被发现的？

Can you answer the question when Penicillin was discovered?

youdao