大单小单大双小双公式简介：Every breath feels like a year has passed, which is very difficult. Li Dao himself can't figure out how long the time has passed, whether it is a month, a year, or even longer.
Every breath feels like a year has passed, which is very difficult. Li Dao himself can't figure out how long the time has passed, whether it is a month, a year, or even longer.
