词典释义：
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What is the minimum temperature today?
今天的最低温度是多少？
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The minimum temperature is minus17 degrees.
最低温度是零下17度。
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Annual, autumn and winter mean minimum temperature increased sharply.
年平均、秋季和冬季平均最低气温升温显著。
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The minimum temperature could dip to as low as 9 degrees on Wednesday.
下周三最低气温可能下降到9度。
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The mean minimum temperature of 21.2 degrees ranked highest for November.
平均最低气温为21.2度，也是十一月份的最高纪录。
最低温度是指对某地在一定时段内测得的温度极小值。