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It could become a very stable and safe form of portable memory. 'It.
这是一个非常稳定而安全的便携式存储方式。
youdao
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It gave humans the first form of portable light and heat.
他给人类带来第一种可以发光和发热的物质。
youdao
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It gave humans the first form of portable light and heat.
他给人类带来第一种可以发光和发热的物质。
youdao