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What do metals, glass, and plastic have in common?
金属、玻璃、塑料有什么共同点呢？
youdao
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Painting is the most common way to protect metals from corrosion.
涂漆是使金属免受腐蚀的最通用办法。
youdao
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Painting is the most common way to protect metals from corrosion.
涂漆是使金属免受腐蚀的最通用办法。
youdao