时差N小时 在心里是双胞胎

Don: Hey Yael, are you a twin?

唐：嗨，雅艾尔，你是双胞胎吗？

Yael: Nope.

雅艾尔：不是。

Don: Are you sure?

唐：你确定？

Yael:Unless there's something my parents haven't told me, yes, I'm sure. I'd know if I had a twin brother or sister.

雅艾尔：除非我父母隐瞒了我一些事实，是的，我确定。如果我有双胞胎兄弟姐妹的话，我应该会知道。

Don: Perhaps, but even if you don't have a twin, you could still be a twin.

唐：也许，但是即使你没有双胞胎兄弟姐妹，你也可以是双胞胎。

Yael:I don't get it.

雅艾尔：我不明白。

Don: You could be a chimera¹.

唐：你可以是凯米拉。

Yael: Oh, right. Actually, I still don't get it. A chimera is a mythological² beast with the head of a lion, the body of a goat, and the tail of a dragon, right?

雅艾尔：啊，对。事实上，我还是不懂。凯米拉是有着狮头，羊身，龙尾巴的神话兽，对吗？

Don: In mythology³, yes, but in biology a chimera is an organism made up of two distinct genetic⁴ lines.

唐：在神话中是这样，但是在生物学上，它是由两种不同基因序列构成的生物。

Yael:But how is that possible?

雅艾尔：怎么可能？

Don: It's what happens when twin embryos⁶ fuse in the womb. The fusion⁷ results in what looks like a single embryo⁵, but the genetic material from each twin remains⁸ separate.

唐：子宫里的双胞胎胚胎就是这样融合的。胚胎融合后看起来只剩一个胚胎，但每个双胞胎的遗传物质还是分开的。

Yael:So what does that mean? Does a chimera have one arm from one twin and the other arm from the other twin?

雅艾尔：那么这意味着什么呢？是不是一个凯米拉的两只胳膊分别来自两个双胞胎？

Don:Something like that. It's not like the arms would look different, exactly, or that the body's organs wouldn't be compatible or not work properly. But they do contain different and distinct sets of chromosomes⁹. So if you're a chimera, your liver could be composed of cells with one set of chromosomes while your heart, say, consists of cells with an entirely¹⁰ different set. Cool, huh?

唐：类似吧。实际上双臂不会看起来不一样，身体的器官也会互相兼容，且功能良好。但是他们包含的染色体确实不一样。如果你是一个凯米拉，你的肝脏会由一套染色体控制合成的细胞组成，但你的心脏则是由另一套决然不同的染色体控制合成的细胞组成。很酷吧？

Yael:What happens when the embryos that fuse are of different sexes?

雅艾尔：如果融合的胚胎性别不同会怎么样呢？

Don:Then the chimera could be a hermaphrodite.

唐：那么凯米拉就可能是阴阳人。

Yael:Well, I know I'm not a hermaphrodite.

雅艾尔：那我肯定不是阴阳人。

Don:But you could be your own twin.

唐：但你可能是自己的双胞胎。

1 chimera   

n.神话怪物；梦幻

参考例句：

• Religious unity remained as much a chimera as ever.宗教统一仍然和从前一样，不过是个妄想。
• I am fighting against my chimera.我在与狂想抗争。

2 mythological   

adj.神话的

参考例句：

• He is remembered for his historical and mythological works. 他以其带有历史感和神话色彩的作品而著称。
• But even so, the cumulative process had for most Americans a deep, almost mythological significance. 不过即使如此，移民渐增的过程，对于大部分美国人，还是意味深长的，几乎有不可思议的影响。

3 mythology   

n.神话，神话学，神话集

参考例句：

• In Greek mythology,Zeus was the ruler of Gods and men.在希腊神话中，宙斯是众神和人类的统治者。
• He is the hero of Greek mythology.他是希腊民间传说中的英雄。

4 genetic   

adj.遗传的，遗传学的

参考例句：

• It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
• Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

5 embryo   

n.胚胎，萌芽的事物

参考例句：

• They are engaging in an embryo research.他们正在进行一项胚胎研究。
• The project was barely in embryo.该计划只是个雏形。

6 embryos   

n.晶胚；胚，胚胎( embryo的名词复数 )

参考例句：

• Somatic cells of angiosperms enter a regenerative phase and behave like embryos. 被子植物体细胞进入一个生殖阶段，而且其行为象胚。 来自辞典例句
• Evolution can explain why human embryos look like gilled fishes. 进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样。 来自辞典例句

7 fusion   

n.溶化；熔解；熔化状态，熔和；熔接

参考例句：

• Brass is formed by the fusion of copper and zinc. 黄铜是通过铜和锌的熔合而成的。
• This alloy is formed by the fusion of two types of metal.这种合金是用两种金属熔合而成的。

8 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

9 chromosomes   

n.染色体( chromosome的名词复数 )

参考例句：

• Chromosomes also determine the sex of animals. 染色体也决定动物的性别。 来自《简明英汉词典》
• Each of four chromosomes divide longitudinally. 四种染色体的每一种都沿着纵向分裂。 来自《现代汉英综合大词典》

10 entirely   

ad.全部地，完整地；完全地，彻底地

参考例句：

• The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
• His life was entirely given up to the educational work. 他的一生统统献给了教育工作。