When the cold comes, type three numbers.

Answer: Cold air means that the weather is very cold. Under normal circumstances, cold air appears in winter and the climate is relatively cold. If there is a first or second wind, it will form cold air. Cold air guesses three numbers, which should be solved between the lines. The cold word for cold air stands for cold, which appears in winter all year round, and the cold word is two drops of water everywhere, representing the number 6. Empty, it is often understood that why there is nothing means 0. Qi and the number seven use phonetic symbols. Guess the three numbers are 6, 0 and 7.