六上数学公式简介：After this exam, the National Day has also arrived. During the seven-day holiday, everyone is sharpening their skills and preparing to pack their luggage, either to go home or travel outside to relax themselves.
After this exam, the National Day has also arrived. During the seven-day holiday, everyone is sharpening their skills and preparing to pack their luggage, either to go home or travel outside to relax themselves.
