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Clay is a plastic substance.
黏土是可塑物质。
《牛津词典》
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The substance polymerizes to form a hard plastic.
这种物质聚合形成坚硬的塑料。
《牛津词典》
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Plastic is a substance that hardly decomposes in the nature.
塑料是一种在自然中极难降解的物质。
youdao
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Plastic is a substance that hardly decomposes in the nature.
塑料是一种在自然中极难降解的物质。
youdao