The most valuable firms are Google, Amazon, Facebook and Microsoft ．

The history and the current development features of RTA.

使我们对区域贸易集团的由来和当前的发展趋势有了清晰和完整的认识。

Analysis of the effects of some relative factors on RTA examination

视网膜厚度分析相关影响因素分析

RTA is an exception to the MFN principle under multilateral trade system.

区域贸易协定是多边贸易体制最惠国原则的例外。

Members of RTA can exclude application of safeguard measures mutually.

区域贸易协定成员国可以排除保障措施的相互适用。

RVP: My wife, my baby and shirts in my games room from the World Cup as they hold good memories.

老婆，孩子，还有参加世界杯时的衣服，这些衣服上面有我美好的回忆。

There was significant difference in the ventricular activation between the normal contracting myocardium and RVP myocardium ( P < 0.001).

正常心肌和右心起搏心肌间的差异有显著意义（P<0.001）。

Objective: To investigate the effects of sex hormone on expression of fibronectin in rat ventral prostate tissue ( RVP).

目的：研究性激素对大鼠前列腺腹叶（RVP）内纤维连接蛋白（FN）表达的影响。

RVP: I don't know how to say it in English but it's like a small bitter, lettuce.

我不知道那玩意儿在英语里怎么说，有点像苦菜什么的。

RVP: A funny head of a fictional character.

一个很搞的头像，虚构的。

RVP: I would try and change something in Africa with my power that I had for the day.

想看看自己是否可以尝试改变一下非洲。

RVP: I would change the roads because they are very bad in England.

我要修路！英格兰的路况太糟了。

But SFU can be the leaching way for analyzing the oil.

而单频超声浸取适合作为分析碱蓬籽油时的提取方法。

Developing distributed bioinformatics applications in Windows/ Linux heterogeneous environments using SFU

利用SFU开发Windows和Linux异构环境下的分布式生物信息学应用

SFU has three campuses located in Metropolitan Vancouver, a large, safe and cosmopolitan city on the beautiful west coast of Canada.

西门菲沙大学坐落在美丽的大温哥华，这里地处加拿大西部，太平洋沿岸，风景宜人、社会安定。

SFU has a highly diverse community, with both faculty and graduate students from around the world.

西门菲沙大学校园文化丰富多彩，教师和研究生来自于世界各地。

Posted online late Wednesday, it's a soon-to-be-viral YouTube hit.

视频周三被传上网络，预计很快就会成为YouTube上的热门视频。

You can also follow us on Twitter and YouTube at VOA learning English.

你也可以按照我们的推特及在英语学习。

Its TV ads can also be seen on YouTube.

它的电视广告也同时在YouTube上播出。

What is YouTube's core function?

什么是YouTube的核心功能？

A video on YouTube shows images captured by the so-called RoboKopter.

YouTube上的一个视频上就有一架被称为RoboKopter拍的画面。