Gui Bao 16 season's first super riddle answer.

The answer is "a threesome needs a teacher" (this answer is obtained by scanning the QR code in the picture, so it is the correct answer. I thought about it for a long time before, and finally I had to use this method. The only thing I can see in the whole picture is the word "person" (similar to the eaves of the attic). . . It is hard to guess. . . ; The second one is easy to guess, "A journey of a thousand miles begins with a single step", and the hints are: pig = foot, chestnut = inside, foot = line, big sole = foot, which is completely clear.