柯林斯词典sunup /ˈsʌnˌʌp/ 1. N-UNCOUNT Sunup is the time of day when the sun rises. 日出[美国英语] We worked from sunup to sunset. 我们从日出工作到日落。 返回 sunup剑桥词典→ sunrise 日出(时分),黎明(同 sunrise) 返回 sunup