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来源:雅诚德英语网
These coincided with periods when global temperatures were lower than average, though why is a matter of debate.
这些现象与全球气温低于平均水平时相一致,虽然这是为什么争议的一个问题。
These coincided with periods when global temperatures were lower than average, though why is a matter of debate.
这些现象与全球气温低于平均水平时相一致,虽然这是为什么争议的一个问题。