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1·A third group are known as crepuscular: they thrive in the low light of dawn and dusk and remain inactive at other hours.

第三组被称为黄昏组：他们在黎明和黄昏的微光中茁壮成长，而在其他时间则不活跃。

2·Rabbits cavort in the paddock at dawn and dusk.

黎明和黄昏时，兔子在围场里跳跃。

3·We have already mentioned the issue at dawn and dusk.

我们已经提到在黎明和黄昏的问题。

4·WY: But dawn and dusk are very short, and you're right out in the street.

王寅：但是清晨黄昏时间都比较短，你又都是在大街上拍。

5·Mist crept up the hill from the Urga River at dawn and dusk, swaddling the fields in enchantment.

清晨，雾气从库伦河上悄悄地爬上山坡，等到黄昏时分，又将田地包裹得如幻境一般。

6·Cats are crepuscular - which means that they are most active during the twilight hours of dawn and dusk.

猫咪是微光性动物，它们在黄昏和黎明时最活跃。

7·The most beautiful times of day are dawn and dusk when shadows are long, offering contrast, refuge and form.

一天中最美好的时刻是清晨和黄昏：影子很长，可以形成对比、提供庇护、勾勒轮廓。

8·Attacks on the British positions at dawn and dusk are routine; one Welsh Guards company was attacked 15 times in a day.

在黎明和黄昏时袭击英国阵地成了惯常行为，一支威尔士卫队在一天内遭到15次袭击。

9·The reddish skies at dawn and dusk are caused by Earth's atmosphere, and the zodiacal light originates far outside our atmosphere.

黄昏或黎明前天空变微红色是由于地球的大气原因，而黄道光则发生在远离我们星球的外太空。

10·Dr Hart explained that, because sharks live underwater and many are most active at dawn and dusk, they are operating in relatively dim light.

豪特教授解释“因为鲨鱼在水下生存并且很多都喜欢在黄昏和拂晓活动，所以他们生活在相对比较昏暗的环境中。 就如人们在夜晚利用道路反射的光线照明一样，但有一些鲨鱼在一天所有的时间内活动且他们视网膜比一些夜间出没的肉食动物和深水动物拥有更多的视锥细胞和少量的棒形细胞”。