There,Ramadan says, the president has to pressure the Mubarak regime to open the political arena and stop using constitutional amendments to stifle real political competition.

VOA: standard.2010.05.11

It's going to take place in there. It's going to be a constant pressure, it might be open to the air, or even if it isn't, there might be plenty of room, and it's a liquid anyway, so the pressure isn't going to change significantly.

也许它是液体，它在这个位置,这是恒压的，它也许是连通大气的，就算不是，它也有，足够的空间，而它是液体,压强不会显著地改变。

麻省理工公开课 - 热力学与动力学课程节选

Another sticking point is pressure by the EU for Turkey to open its ports and airports to Greek Cypriot traffic, which it has so far failed to do.

VOA: standard.2010.04.15