adj.夜行的，夜间活动的，夜间发生的

Many nocturnal animals, such as owls and bats, are most active at night when humans are sleeping.
许多夜行动物，如猫头鹰和蝙蝠，在人类睡觉的时候最为活跃。
The desert fox is a nocturnal creature that feeds primarily on insects during the cool, evening hours.
沙漠狐狸是一种夜间活动的动物，主要在凉爽的夜晚以昆虫为食。
Some people find it easier to concentrate while working on nocturnal shifts, as they are naturally more alert at night.
有些人发现在夜班工作时更容易集中精力，因为他们天生在夜晚更警觉。
The city's nightlife is vibrant, with numerous bars and clubs catering to the nocturnal crowd.
城市的夜生活非常活跃，有许多酒吧和俱乐部迎合夜猫子们的需求。
The nocturnal owl's keen eyesight allows it to hunt efficiently in the darkness.
猫头鹰的夜视能力使其在黑暗中狩猎效率极高。
Due to her nocturnal habits, she often missed out on daylight activities with her friends.
由于她的夜间习性，她经常错过与朋友们的白天活动。
The rare plant species, known for its nocturnal blooming, attracts pollinators by opening its petals only after sunset.
这种罕见的植物以其夜间开花而闻名，只在日落后才展开花瓣吸引传粉者。
The nocturnal hare retreats into its burrow during the day, but emerges at dusk to graze on vegetation.
夜行的野兔白天躲在洞穴里，黄昏时分才出来吃草。
Many photographers prefer to capture the beauty of landscapes under the soft glow of moonlight, making nocturnal photography a popular genre.
许多摄影师喜欢在月光下拍摄风景的美，使夜间摄影成为一种流行风格。
The nocturnal bat migration is an impressive natural phenomenon, with millions of these creatures flying hundreds of miles in search of food.
夜行蝙蝠的大规模迁徙是一个令人惊叹的自然现象，数百万只蝙蝠飞数百英里寻找食物。