domino theory造句怎么写

"domino theory or domino effect,Doctrine of U.S. foreign policy during the Cold War, according to which the fall of a noncommunist state to communism would precipitate the fall of other neighbouring noncommunist states. "

Various scholars examined the domino theory in detail and found little historical or contemporary evidence to support it.

Although the domino theory seemed to have been dealt a fatal blow in the wake of the Vietnam War, it has re-emerged, phoenix-like, in the current debate over Afghanistan.