First, make it clear that this is a vivid metaphor. The first two sentences say that the external behavior of rabbits is very different when they are still, and they can tell the male from the female at a glance; But when rabbits run together, it is difficult to tell the gender, that is to say, the gender characteristics of men and women are obvious in daily life, but it is difficult to tell when fighting on the battlefield.
Secondly, we should further think about why the author ended the poem with such a metaphor. First, this metaphor vividly explains the surprise of "fire companion" and gives reasonable answers to the questions that readers will inevitably have. Second, these four sentences can be regarded as Mulan's answer to "fire companion". From these four witty answers, we can see that Mulan is full of wit, wisdom and pride. What else is there? What a lovely Mulan girl! Thirdly, the metaphor of male and female rabbits is precisely the characteristic of folk song language, which adds color to the whole poem and adds icing on the cake.
In addition, these poems are regarded by the singer or narrator as a compliment to Mulan, which is not contradictory to the view that they are regarded as Mulan's answer to "fire companion"
meanwhile
This is an attachment, a tribute to Mulan. With an interesting metaphor, it eulogizes and praises Mulan's undiscovered caution and agility in 12 years.
End with a metaphor. With the metaphor of two rabbits running together, it is difficult to tell the male from the female, which skillfully answers the mystery that Mulan disguised herself as a man and replaced her father in the army 12 years, which is interesting and unforgettable.
The answer is not easy to adopt.