名词
中文翻译：外部存储器
同义词：
['external storage', 'external hard drive', 'external RAM']
例句：
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1. The external memory is crucial for storing large amounts of data.
外部存储器对于存储大量数据至关重要。
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2. The company's new external memory card is expected to be released next month.
该公司预计下个月发布新款外部内存卡。
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3. The external memory is not as fast as the internal one, but it is more reliable.
外部存储器的读写速度不如内部存储器，但更可靠。