9个数复式三中三有多少组

简介：The third is the difficulty of marching. Up to now, several main roads in Yunnan have been basically repaired, and the official roads have been paved, allowing for smooth marching. However, the roads in Myanmar are still the same as before, with dense forests, rugged and difficult roads, and many rivers. It is already difficult to walk, but if it rains, it will be even harder.