Summer is hot, Winter is cold.

夏天很热，冬天很冷。

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I mean it's winter and it's really hot right now.

现在都已是冬天了，但还是很温暖。

大学篮球的人气 - SpeakingMax英语口语达人

On winter afternoons, hot chocolate is on offer, along with a delicious assortment of pastries.

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Too cold in the winter and too hot in the summer, the grapes used to rot on the vine.

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Among the energy-saving options, two promising technology switches are the electrification of transportation (electric vehicles can be about four times as energy-efficient as standard fossil-fuel vehicles) and the use of electric-powered heat pumps to deliver winter heating and hot water (heat pumps can be four times as energy-efficient as standard heaters).

CNN: Commentary: Let's get real about alternative energy