The explanation for the pain is partly historic.

对这个麻烦的解释，人们认为部分由历史造成。

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The increase in carbon dioxide has come partly from burning fossil fuels, and has surpassed historic highs in the past decades according to NASA.

二氧化碳的增加部分来源于化石燃料燃烧。据NASA称，过去十年间二氧化碳浓度达到历史最高。

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They believe he is the right man to clean up the bank's culture, even if some would say he was partly to blame for the historic shortcomings in the bank's culture.

BBC: With Agius's exit from Barclays, will Diamond stay?

The limitations of Pekingology are humbling to any China-watcher, but some historic failures are at least partly self-induced.

ECONOMIST: Banyan

This is partly because they value land on their books at its historic purchase price, rather than its current price.

ECONOMIST: British housebuilders are getting bigger