Since they can and do successfully inter-breed, they cannot be classed as different species.
既然它们能够而且确实可以成功杂交繁殖，它们就不能被归为不同的物种。
Victor tells his son that since they are both alive, he has not failed.
维克多告诉他儿子，既然他们都还活着，他就没有失败。
It's a long time since they left.
他们已经离开很久了。
They've become a lot more domesticated since they got married.
他们婚后恋家多了。
The two of them have been close friends ever since they knew.
他们俩认识后一直很要好。
You could go meet them since they are free.
既然他们有空，你可以去见见他们。
Two weeks have lapsed since they arrived in Paris.
自他们抵达巴黎以来，已过去了两个星期了。
It is not quite a week since they left Brighton.
他们离开白利屯还不到一个星期。
Since they are so useful, our example databases use them.
因为它们这么有用，所以我们的数据库使用了它们。
Since they would not accept my advice and spurned my rebuke.
不听我的劝戒，藐视我一切的责备。
At first, they receive a lower salary, since they work less hours.
首先，他们获得更少的薪水，因为他们工作时间短。
He has also been Gene's best friend since they founded the business.
自从公司成立他一直是基恩最好的朋友。
Let's consider iterators first, since they are simpler to understand.
由于迭代器比较容易理解，让我们先来看它。
Victor tells his son that since they are both alive he has not failed.
维克多告诉他儿子，既然他们都还活着，他就不算是失败。
How can this be, since they haven't begun implementing the service yet?
既然他们还没有开始实现服务，怎么可能进行服务开发呢？
Walter and Tony had been good friends ever since they met at school.
沃尔特和托尼自在学校认识那时起就是好朋友。
Jeans can be a little longer, since they shrink a bit when you wash them.
牛仔裤可以长点，因为它会缩水。
However it has been a much-publicised six seasons since they won a trophy.
然而，自从他们捧杯以来，这六个赛季的阿森纳都长期暴露在镁光灯下。
Since they have the complete set, these nodes are called full repositories.
因为它们具有完整的数据集，所以这些节点称为完整储存库。
Since they are without their boyfriends and husbands, they decide to go in.
她们都没有带男朋友或者老公来，所以决定进去看看。
Since they may have to do so again they could not afford to savage each other.
由于他们有可能以后还会保持这种关系，所以可能无法承受相互攻击的后果。
In this article, we confine ourselves to 2d plots, since they are the most common.
在本文中，我们仅限于2d绘图，因为它们是最常见的。
We have known who the lucky nominees are since they were announced on February 12.
由于被提名人的名单已于2月12日公布，我们已经得知哪些幸运儿获得了提名。
But most economists think things have got even worse since they were gathered.
但大多数经济学者认为现在情况比采集数据时更加严重了。
For some professions, things will get better-since they could hardly get worse.
对于有些行业，情况会有所好转——因为它们的情况已经很难再坏了。
Since they first walked the planet, humans have either buried or burned their dead.
自从人类在这个星球上出现，人类不是土葬就是火化掉他们的尸体。
Since they are inspiring, they push everyone on the team to give more of themselves.
正因为它很振奋，这就要求团队的每个人都更多的付出。
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