It's going to rain, because the dark clouds are gathering and hanging lower and lower.
就要下雨了，因为乌云密布，而且越压越低了。
Rather, they are dark because of interstellar dust that hides the stars behind it.
相反，它们之所以是黑暗的，是因为星际尘埃将恒星隐藏在它的后面。
The tugboat is small and dark and it's making a lot of smoke, but it's very strong, because it's pulling the much bigger ship.
拖船又小又黑，还冒着很多烟，但它非常有力，因为它在拖着比它更大的船。
Normally planes don't go to the polar post from February to October because of the dangers of flying in the pitch-dark and cold.
通常情况下，飞机不会在2月到次年10月之间经行极地，因为在漆黑、寒冷的天气下飞行是很危险的。
Maybe it was because he was listening to the radio, but he didn't notice the dark object in the road until it was too late.
可能是因为当时他正在听收音机，所以当他注意到路上黑乎乎的东西时已经来不及了。
Were you ever knocked by others because of the dark?
你曾经因为黑暗而被别人撞到过吗？
The store, Wuguan Books, is known as an "experimental bookstore" because of the dark lighting used to show the books on sale.
这家名为“无关书店”的书店被称为“实验书店”，因为它在展示出售的书籍时使用了昏暗的灯光。
At that moment, Ma noticed the deliveryman's face and hands were dark purple because he was working outside for too long.
那一刻，马注意到，外卖送餐员的脸和手都是深紫色的，因为他在户外工作太久了。
The poor Amazons had to start mutilating themselves because some big boob thoughtlessly dabbled in the dark art of etymology without the proper equipment.
由于某些笨蛋不加思考、未用合适的工具就涉足词源学的黑暗艺术而导致可怜的亚马逊女战士开始自残身体。
And many outdoor areas that people would prefer to be bright at night remain dark because of the expense.
再说还有很多人们希望在晚间照亮的室外区域因为成本的缘故而不得不陷入黑暗的包围。
Mother had to fight off my dad because he went along with most of the professionals, the dark forces who wanted to put me in an institution.
母亲要同父亲斗争因为他同大多数的专业人士搭一条船，他是想把我送到福利院的暗黑势力。
Havana's once elegant seafront promenade, the Malecon, is now often dark at night because of lack of street lighting.
而由于路灯关闭，哈瓦那一度繁华的海滨大道马雷贡夜间也经常漆黑一片。
This is something that had never been seen up to now because the painting was always judged to be dark and difficult to examine," he told a news conference.
之前，我们从未发现过这层薄沙，因为人们一直认为这幅画色调暗，不易探查。
This is something that had never been seen up to now because the painting was always judged to be dark and difficult to examine, "he told a news conference."
之前，我们从未发现过这层薄沙，因为人们一直认为这幅画色调暗，不易探查。
We find that the amount of your L/C is insufficient, because the premiums for Dark and Special colors are not included therein. Therefore, please increase the amount of the L/C to $56, 800.00.
我们发现由于信用证金额未包括深特色加价，因此信用证金额不足，请将信用证金额增至$56，800.00。
The researchers said the inclusion of dark matter is likely crucial to their results, because theory predicts that galaxies sit inside larger spheres, called halos, of the invisible stuff.
研究人员们表示暗物质究竟包含什么对于他们的结果起着非常关键的作用，因为根据他们的理论，星系位于更大的球状结构——星系晕的包围之中，而星系晕是由不可见物质构成。
Because hydrogen atoms trap light, the young universe entered its "dark ages."
由于氢原子阻拦光线，年轻的宇宙进入了“黑暗时期”。
Gaga, who has dark hair in the clip, failed to win - because after 12 minutes she lost her temper and swore at her server.
Gaga在视频里还是黑色的头发，她没能赢得这场比赛——因为她忍了12分钟还是对服务生发起脾气来。
He's simultaneously confronting the fear of heights, snakes, and the dark because he's trapped in that thing and the logic is--the logic of--the logic is not bad.
他同时面对着高空，蛇,以及黑暗所带来的恐惧,因为他被困在了那个地方,这样的逻辑看上去没什么错。
Oh, it's not because I don't have the right angle-it's because it's dark.
不是角度问题。是因为太暗了。
I have to admit that I gave the book a marathon read over last weekend and had some dark dreams because of it.
我不得不承认的是，上个周末我对这本书进行了一场马拉松似的阅读，而且因为它还做了些噩梦。
The belt of vegetation that crosses Africa below the Sahara is very dark because most of the sunlight is absorbed by plants for photosynthesis.
在撒哈拉沙漠下方，横贯非洲中部的植被带颜色非常深，因为植物由于光合作用吸收了大多数太阳光。
Galaxy clusters like MACS 1206 are perfect laboratories for studying dark matter's gravitational effects because they are the most massive structures in the universe.
像MACS 1206这种星系团是研究暗物质的引力效应的绝佳实验室，因为它们有宇宙中最大规模的结构。
Dark areas appear black rather than dark grey because the relevant cells are simply switched off.
黑暗区域显示的是黑色而不是深灰色，因为相关的单元格只是被关闭了。
Such research, he concluded, "sheds a new light on dinosaurs…which is handy because a lot of them were running around in the dark!
他总结说，这类研究“为恐龙的研究开辟了新路，让研究豁然开朗。而在过去，很多恐龙‘只能在黑暗中四处奔跑’。”
That's because we tend to time our blinks so that we don't get left in the dark.
那是因为我们倾向于选择合适的时机来眨眼，这样我们就不会错过很重要的事情。
You can't be merely taking the teenager's perspective as she swims in the dark, because she is cheerful, and you are terrified.
她在黑暗中向前游的时候，你不可能单纯以一个青少年的视角来看，因为她情绪很高，而你却恐惧。
You can't be merely taking the teenager's perspective as she swims in the dark, because she is cheerful, and you are terrified.
她在黑暗中向前游的时候，你不可能单纯以一个青少年的视角来看，因为她情绪很高，而你却恐惧。
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