It was to beard the lion in his den—to call on the Baron.

这是在他的巢穴里给狮子留胡子——去拜访男爵。

She would meet Julius, persuade him to her point of view, and they would beard the lion in his den.

她会见朱利叶斯， 说服他接受她的观点， 然后他们会在他的巢穴里给狮子留胡子。