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It took 6 years of blasting to make room for these giant passageways.
为建造巨大船闸，爆破工程花了6年时间。
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The ribbons block passageways between molecules that normally exist in plastic.
这些薄条阻断了塑料分子之间通常存在的通道。
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The ribbons block passageways between molecules that normally exist in plastic.
这些薄条阻断了塑料分子之间通常存在的通道。
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