ADJ
				中枢的;关键的
				A pivotal role, point or figure in something is one that is very important and affects the success of that thing.
例句
						The Court of Appeal has a pivotal role in the English legal system...
						上诉法院在英格兰司法体系中起着中心作用。
						The elections may prove to be pivotal in Colombia's political history.
						这一选举可能成为哥伦比亚政治史上关键的一次。