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concrete wall /ˈkɒŋkɹiːt ˈwɔːl/ n

中文：混凝土墙

中文 · 混凝土墙Español · pared de hormigónFrançais · mur en béton
Meaning：Masonry structure that is about 40 cm thick; it has a black surface to absorb heat from the Sun to heat the air.
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Trombe wall

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