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back log的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
名詞 backlog:
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an accumulation of jobs not done or materials not processed that are yet to be dealt with (especially unfilled customer orders for products or services)
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the large log at the back of a hearth fire
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something kept back or saved for future use or a special purpose
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accumulate and create a backlog
