布莱叶突然发现了这种符号的意义.Suddenly the meaning of this code hit Braille.此刻是换用经典符号的好时候.This is a good time to switch to the classical notation.请马上弄清这些符号的意义.Please make sense of these marks on paper immediately....

“符号的”的英语可以翻译为：symbolic ...