Cover up all openings. Debris and other materials can fall through opening and hurt someone below.
Cover up all openings. Debris and other materials can fall through opening and hurt someone below.
盖好所有开口。瓦砾碎片和其它材料会从开口处掉落而伤到下面的人。
Cover up all openings. Debris and other materials can fall through opening and hurt someone below.
盖好所有开口。瓦砾碎片和其它材料会从开口处掉落而伤到下面的人。