Wheeler（1993）指出教学档案有「工作档案（working portfolios）与「成果档案 ..
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working portfolios
工作的投资组合
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Both hardware makers are working to expand their high-mobility portfolios, but Dell is more focused on enterprise solutions, and HP has indicated that these products will not be rushed to market.
FORBES: The PC Industry Is Digging Its Own Grave
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