It's referring to having sex He wants to get her into bed, it's just a poetic way of saying ''she is too young, she is still a virgin, give it 'two more summers and you can ''pick-the lock . ''That's probably not what the teacher will tell you, Shakespeare's plays and some of his poetry is just a little gross sometimes ..
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.