寒暑

かんしょ
hot & cold
summer & winter

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かんしょ【寒暑】

heat and cold; 〔温度〕 temperature; 〔冬と夏〕 winter and summer.

●寒暑のあいさつ compliments of the season; a greeting appropriate to the season; a seasonal greeting

・その国は寒暑の差がはなはだしい. The country's climate is marked by extremes of [in] temperature.