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使用机器前，你要先学习它的操作系统。
You'll have to learn the operating system before you can use this machine.
youdao
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整理非常好，学习嵌入式操作系统的可以看看！
Finishing a very good study of the embedded operating system can look at!
youdao
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整理非常好，学习嵌入式操作系统的可以看看！
Finishing a very good study of the embedded operating system can look at!
youdao