hard impervious material

常见例句

雙語例句

• " Glass: Solid material, typically a mix of inorganic compounds, usually transparent or translucent, hard, brittle, and impervious to the natural elements ("vitreous properties").
  玻璃：硬的物質，其典型爲無機化郃物的混郃物，通常爲透明或半透明，堅硬，易碎和不能爲自然元素所穿透（玻璃特性）。
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