We all have XX chromosomes, right?

我们都有XX染色体，对吧？

But until 6 or 7 weeks after fertilization, both 'XY' and 'XX' embryos have identical gonads.

但直到受精后6或7周，XY和XX胚胎都有相同的生殖腺。

And The XX factor: How Working Women are Creating a New Society. By Alison Wolf.

和《XX因素：职场女性如何创造新社会》，作者：艾莉森·伍尔芙。

You can be XX and male.

你可以是 XX 和男性。

Here in central XX several hundred people are marching through the city centre.

在 XX 中心，数百人正在市中心游行。

An unmanned Russian rocket has blasted off from the Baikonur xx in Kazakhstan on a supply run to the International Space Station.

一艘俄罗斯无人火箭在哈萨克斯坦拜科努尔发射，这是在为国际太空站运送补给物资。

And biologically speaking, the root cause of sex is a pair of chromosomes: XX for females and XY for males.

从生物学上讲，性别的根本原因是一对染色体：女性为 XX，男性为 XY。

The next most common scenario is mosaicism, meaning the individuals have some cells in their body with the 45, X karyotype and others with a 46, XX karyotype.

另一种最常见的情况是嵌合体，这意味着个体体内的一些细胞具有45，X核型，而另一些细胞具有46，XX核型。

And even people with 'XX' Chromosomes that develop male genitals and characteristics, due to a piece of the 'Y' chromosome breaking off, and switching places to an 'X' chromosome.

甚至那些带有“XX”染色体的人也会发展出男性生殖器和特征，这是由于“Y”染色体的一部分断裂，并转移到“X”染色体上。

Like, it can mean having different combinations of sex chromosomes – as in Klinefelter Syndrome, which creates chromosomes XX and Y, or in Triple-X Syndrome, which results in XXX.

就像，这可能意味着具有不同的性染色体组合——如克兰费尔特综合症，它会产生 XX 和 Y 染色体， 或者在三 X 综合症中， 会产生 XXX。

The International Commission of missing persons, which is based in XX of XX, says it will be granted permanent international legal status this month to help to track down millions of missing people around the world.

国际失踪人口委员会表示，本月该组织将被赋予永久性的国际司法身份，帮助追踪全世界数百万失踪人口的下落。

In Klinefelter syndrome, the sex chromosome pairs which is either XX or XY don't separate in meiosis I in the male or female germ cell and this resulted in two gametes with a pair of X chromosomes and two gametes without X chromosomes.

Klinefelter综合征中，配对的XX或XY性染色体对在父亲或母亲的第一次减数分裂中没有分离，从而产生了两个有两条X染色体的配子以及两个没有X染色体的配子。

Specifically, I expect a salary range of about XX million per year, a salary level that will enable me to have some security in my life and at the same time facilitate me to better focus on my work.

具体来说，我期望的薪资范围是年薪XX万左右，这个薪资水平能够让我在生活上有一定的保障，同时也有利于我更好地专注于工作。