问题描述：
英语翻译
Sea -level rise must be expressed as a range of values that are under constant reassessment.The IPCC forecast for global mean sea-level rise this century is from 0.11 -0.88 m.
mean在句子里是什么意思?
Sea -level rise must be expressed as a range of values that are under constant reassessment.The IPCC forecast for global mean sea-level rise this century is from 0.11 -0.88 m.
mean在句子里是什么意思?
问题解答：
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