1.同“double X”
2.【生】同配子型
3.〈英〉劣等纸或微疵纸包皮上的标记
1.Same as double X
1.In mammals, females are XX while males are XY so a woman should never be able to provide the necessary Y chromosome genes to produce a son.
在哺乳动物中，雌性的性染色体是XX，而雄性的是XY，所以一个女人是绝不可能产生男性不可缺少的Y染色体基因而生育男孩的。
2.To give you with more comprehensive information, may we recommend you to ask the XX department to give you some relevant information?
为了让您得到更全面的信息，建议您向我行XX部门了解相关内容；
3.XX found himself in an unknown land, from which he eventually reached to GL.
他意识到自己正处于一个陌生的陆地上，从那里他终于到达了GL。
4.The internet is littered with scores of "Best of. . . " movie lists; we even have a few. The angle of this list is a bit different though.
网络上到处都充斥着有关“最XX的”的评比，但是，这张电影列表的角度却有所不同。
5.XX project will no doubt bring the best harvest I, let me in my life on the ladder further.
XX项目毫无疑问会给我带来最好的收获，让我在我人生的阶梯上更进一步。
6.But I feel a bit sorry that you did not mention XX's e-mail address in your letter.
但我感到有点遗憾，您的信中没有提到XX的电子邮箱。
7.Whether you are willing to be your wife, XX in her ill, whether rich or care her poor, and lifetime waiting beside him to die?
你是否愿意XX成为你的妻子，在她生病的时候照护她，不论富或贫，也一辈子守候在他的身边，至死不渝吗？
8.A few days ago my girlfriend told me that if I could get her an autograph by XX then she would marry me.
前几天女朋友对我说：“如果你能送我一件带有XX亲笔签名的东西，我就嫁给你。”
9.Subsequently, she asked what he say XX, XX said he said nothing, I.
后来，她问XX他说了什么，XX说他说没事，有我在。
10.XX, you help me deal with this matter? I really do not know FEDEX contact the company who can help me deal with this matter, thank you! !
你能帮我处理这件事吗？我真的不知道联系FEDEX公司谁可以帮我处理这件事，谢谢！！