GbEng
夏季昼长。 In summer the days are long.
警方对疑犯昼夜监视. The police are keeping the suspects under round-the-clock surveillance.
但愿他别再昼夜不分地招待他的朋友. I wish he'd desist from entertaining his friends at all hours of the day and night.
昼盲(症)一种视觉缺陷,其特点是在明亮的光线中和在阴暗的光线里一样无法看清东西 A visual defect characterized by the inability to see as clearly in bright light as in dim light.