Word: 极昼 (jízhòu) Traditional: 極晝 极昼 dictionary entry jízhòu polar day Full dictionary entry for 极昼 Example sentences using 极昼 2 sentences, showing page 1 of 1. 北极的夏天有极昼现象。 Běijí de xiàtiān yǒu jízhòu xiànxiàng. The Arctic summer has the polar day phenomenon. 极昼时太阳整天不落下。 Jízhòu shí tàiyang zhěngtiān bú làxià. During polar day, the sun doesn't set all day.