The construction of the earth brick, concrete, and steel schools will be done mainly by local volunteer labor, enabling community members to participate more in the building of their schools.
学校砖、混凝土和钢的建造主要由当地志愿者完成，使社区成员能够参与其校园的建造中。
Mortar: Material used in Building construction to Bond Brick, stone, tile, or concrete Blocks into a structure.
砂浆把砖、石、瓦、混凝土块黏接成建筑砌体的材料。
Mortar: Material used in Building construction to Bond Brick, stone, tile, or concrete Blocks into a structure.
砂浆把砖、石、瓦、混凝土块黏接成建筑砌体的材料。
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