Iranian and U.S.diplomats were aware of one another's presence at the Moscow conference, but said it is not unusual for them to attend the same international forums.

VOA: standard.2009.03.27

That's a real opportunity that your presence and presence of Muslim students at Princeton allows the rest of the population as well as each of the traditions.

你以及穆斯林学生的存在,都为其他的学生和宗教传统,提供了机会。

普林斯顿公开课 - 人性课程节选

Several officials at Poland's National Security Bureau are expressing concerns about the move, saying the presence of American troops on Polish soil would have increased the country's security.

VOA: standard.2009.09.17

But observers say India and China remain wary of accepting legally binding emission cuts at a time when they are making their presence felt on the global economic scene.

VOA: standard.2009.11.27