"Difficult, very difficult!"
Seeing Xi Yu was really about to leave, you hurried forward to grab her arm, with a pleading look on your face, "Ay, my dear lady, for the sake of the decades of friendship between Little Yun and me, please help me out."
"Nonsense, my lady isn't even twenty yet, where did these decades of friendship come from?"
"Of course, it's there," you began to earnestly spout nonsense, "According to Einstein's theory of relativity, everyone experiences time differently. For an idle layabout who does nothing all day, a day passes in the blink of an eye; but for a hardworking person, a day signifies much more. Although Little Yun and I have known each other for only about fifteen or sixteen years according to the regular calendar, our deep bond means that one day spent together is like several days with someone else. So doesn't a decade or so equate to several decades?"