External memory, also known as secondary storage, is extension of the internal memory.
外部存储器，也称辅存，是内存的延伸。
Boolean value that determines whether to prevent secondary storage of sensitive information.
一个布尔值，它决定了是否阻止敏感信息的二级存储。
The cloud could serve as a secondary or, more likely, tertiary tier of storage.
云存储可以作为数据存储的第二层，或者更为可能的，将其作为第三层。
The cloud could serve as a secondary or, more likely, tertiary tier of storage.
云存储可以作为数据存储的第二层，或者更为可能的，将其作为第三层。
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