When you press the toy guns trigger, the western man kicks the Chinese man in the back.

VOA: special.2010.03.03

Now that's pretty far fetched and not many people would say that a pop tart should be a controlled substance and regulated by government, but there are some very interesting chemical properties associated with foods like this that trigger things going on in the brain that affect us in a very big way.

这多少有点牵强,而且也没有很多人会认为,这种果酱馅饼应归为管制品,并受到政府监管,但有趣的是这种食品,确实有一些特别的化学特性,它会作用于大脑并会对我们产生大的影响

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Stress can act as a trigger. So can chocolate in some people.

VOA: special.2009.03.18

During the winter, breathing in cold air can trigger asthma symptoms.

VOA: special.2009.07.28

"I firmly believe it is in Iran's interest not to develop nuclear weapons, because it would trigger a nuclear arms race in the Middle East and be profoundly destabilizing in all sorts of ways."

VOA: special.2009.05.23

Art Cashin,the floor director at UBS Financial Services, says many investors worry that the uncertainty in Europe could trigger another global meltdown.

VOA: standard.2010.05.21

Already fires have begun in parts of Indonesia, where there are warnings that an extended dry season this year could trigger severe blazes.

VOA: standard.2009.06.24

He said that would trigger a cascade of events in which Honduras would find itself thrown out of many components of the inter-American system.

VOA: standard.2009.07.01

"The Sharpeville and Langa massacres were a tipping point in that they served to trigger off deep revulsion and disgust, both locally and internationally, against the apartheid government."

VOA: standard.2010.03.21

"When you have a situation like this occur, you are bound to have a situation down the line where there could be a shortage in food, which can also trigger other negative situations, such as malnutrition, for example, or insufficient food for cattle, which is also another important economic sector in West Africa,".

VOA: standard.2009.09.08