1·The three-fifths formula handed Jefferson his narrow victory in the presidential election of 1800 by inflating the votes of the southern states in the Electoral College.
这一“五分之三准则”使南方各州在选举团中的选票膨胀，从而使杰弗逊在1800年的总统选举中险胜。
2·It was a narrow victory.
这真是一场险胜。
3·With Sanders' narrow victory Tuesday, he picked up at least 43 of Indiana's 83 delegates.
周二与桑德斯险胜，他拿起至少43印第安纳州的83名代表。