The Gift of the Magi

It'll grow again --- you won't mind, will you?
I just had to do it.
My hair grows awfully fast.
Say 'Merry Christmas !' Jim. and let's be happy.
You don't know what a nice --- what a beautiful, nice gift I've got for you."
"You've cut off your hair ?" asked Jim, laboriously, as if he had not arrived at that patent fact yet even after the hardest mental labor.

It : My hair
laboriously : 一言一言苦しそうに
that patent fact : その歴然たる事実