envelopes or boxes
信封或盒子
以上为机器翻译结果，长、整句建议使用 人工翻译 。
To this day, there are still places in the federal government where reams of yellow files in manila envelopes are walked from desk to desk, or boxes of documents are shipped back and forth between offices because files aren't yet online.
WHITEHOUSE: Forum on Modernizing Government: Opening Session
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