中英释义：
双语例句
尚无有关实施终身合同的企业的累积数据。
There are no aggregate data covering those firms which practice permanent commitment.
重点词汇
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累积
accumulate; accrue; amass; build up; add up; pile up; run up; rack up; heap up; accumulative; cumulative; accumulated; accumulation; buildup; pileup; accretion; rollover
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数据
data; information; figure; datum; the numbers