变暖 biànnuǎn warm up Origin Definitions Defs Strokes Stroke Words Sentences Sents 世界变暖 shìjièbiànnuǎn global warming 全球变暖 quánqiúbiànnuǎn global warming the gradual increase in the average temperature of the Earth's atmosphere and oceans全球气候变暖 quánqiúqìhòubiànnuǎn global warming