1、It is probable that thenocturnal trades a way back in the ancestry of all mammals.(这种夜间的“交易”也许可以一直追溯到所有哺乳动物的祖先身上。)
2、Bats are much like vampires. They arenocturnal, some species drink blood, and they have an acute sense of hearing and smell.(蝙蝠跟吸血鬼很像。它们都在夜间活动，有些品种会吸血，而且它们有着灵敏的听觉和嗅觉。)
3、An older name,nocturnal myoclonus, is rarely used anymore.(它的旧名字夜间肌肉抽动已经很少使用了。)
4、She currently has five photo series: Warm, Cool, Black,nocturnal and Oath.(目前她创作了五个摄影系列：暖系列、寒系列、黑系列、暗夜系列和约定系列。)
5、Skunks arenocturnal animals — it appears to be asleep, and thankfully, its tail is down.(臭鼬是夜行性动物--它看起来像是睡着了，谢天谢地，它的尾巴是垂下来的。)
6、Long before Western science became enthralled with thisnocturnal denizen of Madagascar's jungles, the aye-aye had its own reputation with the local people.(早在西方科学界对马达加斯加丛林中的这种夜行动物着迷之前，这种栗鼠猴就已经在当地人心中小有名气。)
7、nocturnal animals sleep by day and hunt by night.(夜间活动的动物白天睡觉晚上猎食。)
8、While we may not recall ournocturnal visions, scientists increasingly believe our dreams play an important role in memory and learning.(尽管我们回想不起夜间梦景，科学家日益相信，我们的梦在记忆和学习中起重要作用。)
9、People don't usually think of Van Gogh as an artist ofnocturnal themes.(人们通常不认为梵高是夜间题材艺术家。)
10、Jean Valjean, a thoughtful man, and given tonocturnal strolls, often returned quite late at night.(冉阿让是个喜欢思索和夜游的人，他常常要到夜深才回家。)
11、They are powerful hunters that travel many miles to find prey, such as elk and wild boar, onnocturnal hunts.(老虎是出色的猎手，可以在夜间迂回数英里捕食诸如驼鹿、野山羊这样的猎物。)
12、Mom came in to see if I was asleep. I must have looked small and wary in my little bed, anocturnal animal in pajamas.(妈妈进来看我是不是睡着了。在我的小床上，我看上去一定小小的、警戒的，像一个穿着睡衣的夜间动物。)
13、When there is a full moon, thisnocturnal rodent is careful to stay in its burrow.(在有满月出现的时候，这种夜间出没的啮齿类动物小心地呆在它的洞里。)
14、Thenocturnal animals hide in underwater caves by day, then venture out at night, feeding on small fish, squid, and octopus.(这种夜行性动物白天时隐藏在水底洞穴里，晚上才出来冒险，它们以小鱼、乌贼和章鱼为食。)
15、The nightmare was thenocturnal species of this genus.(“nightmare”就是其中一种出没于夜间的鬼。)
16、The only thing that seemed to differ was when the mice ate. In the wild, mice arenocturnal critters.(老鼠吃东西时唯一的不同就是，在野生环境中老鼠是夜间活动的动物。)
17、The stone marten is a predatorynocturnal mammal with feeding habits similar to those of domestic cats.(岩貂是一种夜间食肉哺乳动物，它的饮食习惯与家猫相似。)
18、Roaches arenocturnal so you'll be able to trace where they live if you see one wandering at night.(小强喜欢夜间活动，所以如果你看见一只在晚上出没的话，就可以找出它们住哪。)
19、It's unnatural for humans to benocturnal — no matter how much coffee is consumed.(人成为夜间性的是反常的——不管消耗掉多少咖啡。)
20、In the wild, mice arenocturnal.(在野外环境中，老鼠都在夜间活动进食。)
21、I immediately sawnocturnal cave crickets and huge cockroaches crawling up the cave wall.(在鸟粪里，我采集到蝇蛆、蟑螂、蜘蛛和山洞蟋蟀。)
22、The dog's main duty will be to accompany me on longnocturnal walks.(那只狗的主要职责将是陪我走长途夜路。)
