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It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed中than前后的时态 不一样 求分析
人气:456 ℃ 时间:2020-04-30 00:01:06
解答
这句是在 has been supposed 前省略了 what
意思是人类似乎早就在关注并尝试了解季节(的变化),比原先设想的还早了2万年.
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