Otunbayeva says if President Bakiyev tries to take on the interim government it will react.

VOA: standard.2010.04.08

I've got to find them by experimenting, by putting other bodies and seeing how they react and then finding out what's the force that acts on a body when it's placed in this or that situation.

我得通过实验找出这些力,我会增加其它物体,观察其反应,求出当它处在这种或者那种情况下时,作用在物体上的力

耶鲁公开课 - 基础物理课程节选

Mark Wickham-Jones from the University of Bristol says the Conservatives and the Liberal Democrats differ on a number of policies and the markets may not react well to that.

VOA: standard.2010.05.13

"Once again I want to warn everybody, especially in Mexico, if you want to come to America through Maricopa County, we are going to have enough fire power to react to any assaults on our deputy sheriffs."

VOA: standard.2010.07.20