Potato, potato, I'm a sweet potato. The next code word can be answered like this: soybean, soybean, I am bean sprout.

Cipher is a Chinese word, pinyin à ao, which means a secret signal agreed upon by each other (with sound, action, etc. ). From Song Yuwenbao's Four Notes on Blowing the Sword: "The examiner, also ordered by the bribery bureau, took it without looking at the words, looking for a secret code."

Code source:

Song Yuwenbao? "Four Records of Blowing Sword": "Examiners are also instructed by the Bribery Bureau to take words without reading them, just looking for the secret code."

"Water Margin" The 30th time: "? Song Wu? I saw these two people winking at the two men with ju knives and making some gestures. "

The thirteenth time in Travel Notes of Lao Can: "Didn't you see that his buddy told Cui Huan to eat vegetables?" That's a code word. "

Xu Chi? One night at the stadium: "He was in the first car and wanted to command the nine cars behind. They have a signal. "