在某种程度上，这是因为用第二语言工作会放慢思考速度。
In part this is because working in a second language slows down the thinking.
这是因为美籍犹太人对以色列的依恋在大多数情况下太过脆弱，以至于无法左右他们的投票。
This is because the attachment that American Jews feel to Israel is too weak, in most cases, to sway their vote.
在拳击中我们已经看到了大量可疑的具有世界头衔类别的比赛，这是因为人们不会花钱看任何次于“世界头衔”类别的格斗。
In boxing, we have already seen numerous, dubious world title categories because people will not pay to see anything less than a "World Title" fight.
这是因为，根据阿基米德的位移原理，漂浮物在水中会转移自身的重量。
This is because, according to Archimedes' principle of displacement, floating objects displace their own weight in water.
这是件大事，因为女性终于可以在正式场合学习了。
This was a big deal because finally women could study art in a formal setting.
这是因为，当我还是一名法律系的学生时，我在纽约的一所学校每周教一个下午的课。
This is because, while a law student, I taught one afternoon a week at a school in New York.
同样，如果一种植物或动物没有留下任何可以繁殖的后代，它就不能把所有的能量浪费在使自己变得更强壮上，因为这是最可能走向灭绝的方式。
Similarly, a plant or animal cannot squander all its energy on growing a big body if none would be left over for reproduction, for this is the surest way to extinction.
这是因为它们有在沙漠中生活的悠久历史，在那里时间并不是首先要考虑的事情。
It's because of their long history of desert living where time is not the first thing to think about.
这是因为气味在一定的高压中心中被抑制住了。
This is because odors are repressed in a fair high pressure center.
很多动物学家认为，这是因为，在几乎没有任何现存竞争物种的情况下，有太多的生态小生境可供生存。
Many zoologists believe that it was because so many ecological niches were available with virtually no competition from existing species.
这是因为在非快速眼动睡眠中，自动的新陈代谢系统对呼吸有排他的控制，身体消耗更少的氧气，产生更少的二氧化碳。
This occurs because during NREM sleep the automatic, metabolic system has exclusive control over breathing and the body uses less oxygen and produces less carbon dioxide.
在该事务中这是一个污点，因为原本每一分钱都应处于监督之下。
It was a blot on an arrangement in which every cent was supposed to be monitored.
这是因为这项技术还没有在现实世界中得到适当的测试。
That's because the technology has not been properly tested in real-world situations.
它非常壮观，因为在十九世纪九十年代，我们达到了西方古典管弦乐队的顶峰，这是一个巨大，美丽，有力的乐器。
It's quite spectacular because here in the 1890s we have reached the apex of the Western classical orchestra, this big, beautiful, powerful instrument.
在合理的情况下，你可以穿你喜欢的衣服或者做你喜欢的头发，而不是你应该做的，因为这是时尚。
Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion.
另一方面，如果他告诉我们这是安全的，我们就不信任他，因为他很可能是在保护支付他薪水的雇主。
If he tells us it is safe, on the other hand, we distrust him, because he may well be protecting the employer who pays his salary.
这是一项重要的创新，因为骆驼能够在恶劣的沙漠条件下茁壮成长，并以低廉成本搬运大量货物，这使它成为一种有效且高效的运输工具。
This was an important innovation, because the camel's abilities to thrive in harsh desert conditions and to carry large loads cheaply made it an effective and efficient means of transportation.
这是因为碱液会造成化学灼伤，在制造过程中甚至会使人失明。
That's because lye brought chemical burns or even made people blind in the making process.
在一些国家，人们不可以不付费就从网上下载音乐，因为这是违法的。
In some countries, people mustn't download music from the Internet without paying, because it's against the law.
这是因为他认为灵魂是存在的，在肉体死后仍会继续存在，而且灵魂是不朽的。
This is because he believes that the soul exists, will continue to exist after the death of the body, and the soul is immortal.
如果任何一个肤色或种族的孩子在学校表现不好，在我们看来，知晓这是否是因为他或她的智商低还是其他因素是非常重要的。
If a child of any color or group is doing poorly in school it seems to us very important to know whether it is because he or she is of low intelligence, or whether some other factor is the cause.
这是因为这些天我一直在练习。
这是因为在中国文化中，长长的面条是“长寿”的象征。
This is because in Chinese culture, long noodles are a symbol of long life.
这是我第一次学歌学得这么艰难，因为我在换成头声唱歌时破音了。
This was the first time I struggled to learn a song, because my voice cracked as I switched to a head voice.
这是因为鲜艳的颜色是在许多食物中发现的天然颜色，所以能够提振人们的精神。
This is because bright colors are natural colors found in many foods, and, therefore, able to raise people's spirits.
我认为这是一个重要的区别，因为在弥尔顿对地狱的描述中，这个比喻的中间，是一个凉亭的形象。
I think this is an important distinction because what in the middle of this simile in Milton's account of hell is an image of a bower.
在美国，他们被认为是黑人，这种社会定义是可行的，因为他们属于少数群体。在巴西，这是不可行的。
In the United States they were considered to be Black, a social definition that was feasible because they were in the minority. In Brazil, it was not feasible.
因为这是她的第三个孩子，而且是在一年中的第三个月出生的，所以人们叫它 “Sansan”，就是“三三”的意思。
Since it is her third baby and born in the third month of the year, people named it Sansan, referring to "three three".
在气候变冷期间，大多数迁徙者预计将前往靠近赤道的非洲，因为在气候变冷的地球上，这是栖息地变化所决定的方向。
During cooling most migrants would be expected to travel toward Africa, which is near the equator, since this is the direction dictated by habitat changes on a cooling Earth.
这是因为在大多数的夜晚，我们都作梦。
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