“decisive role”可以造什么句，decisive role造句

In Kansas, where Triad Management was especially active, the funds may have played a decisive role in four of six federal RACES.

Indeed, it is the EU, not the UN or NATO, that must now play the decisive role.

My friends, the momentous trials of the last century, and the unfolding events of this century, attest to the decisive role of the United States in advancing peace and defending freedom.