10个数三中三多少组简介：The road across the river is under construction, and many blue fences have been erected. It is said that a road is being built. Of course, it has just begun to be planned, and it is not clear yet.
The road across the river is under construction, and many blue fences have been erected. It is said that a road is being built. Of course, it has just begun to be planned, and it is not clear yet.
