这可说是我们校里同学间的一种特有的通信。写着蝇头似的小字的是美丽的信笺,一张或两张,有时竟多至八九张,把它巧妙地反折起来,方方的一小块。在课室内,在校园里,在操场上,把它递在同学的手里或塞在她的衣袋内,等到对方读到了这小方块,你便可在短时间内接到同学的东西——如此往返递送,我们便称之为“豆腐干”通信。 This is a unique communication between classmates in our school. It was a beautiful letterhead, one or two, sometimes as many as eighty-nine, in a pettish print, with a clever reflex, a small square. In the classroom, on the schoolyard, on the playground, hand it in the classmate’s hand or in her pocket and wait for the other party to read it, and you will be able to receive classmates in a short period of time - So round-trip delivery, we call it “tofu” communication.