比较之下，“二号系统”则是慢速的、审慎的思维，不易犯错。

"System 2", by contrast, is slow, deliberative and less prone to error.

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系统现在可以全部装入物理内存，而不必借助慢速的基于磁盘的交换空间。

The system is able to fit everything into physical memory without having to resort to slow, disk-based swap space.

youdao

浏览器也是最近才开始关注速度，很多互联网用户还在使用慢速的浏览器。

Browsers only recently started focusing on speed. Many Internet users are using slow browsers.

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