There followed a gap of four years, during which William joined the Army.

之后有4年的间隔，期间威廉参军了。

《柯林斯英汉双解大词典》

A Los Angeles study suggested that four consecutive years of having a teacher from the top 25 percent of the pool would erase the black-white testing gap.

一项洛杉矶研究表明连续四年有一个民调前25%的老师将会擦除学生考试成绩的差距。

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There barely was a marriage gap in 1960: only four percentage points separated the wedded ways of college and high-school graduates (76% versus 72%).

在1960年几乎没有婚姻差距：大学和高中毕业生结婚的比例仅仅相差4%，分别为76%和72%。

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Agirretxe scored both goals as Sociedad overcame Rayo Vallecano 2-0 to open up a four point gap between itself and fifth place Malaga.

CNN: City comes out on top in semifinal showdown

This four-month gap appears to rule out a referendum in autumn 2002.

ECONOMIST: Britain and the euro

Nacewa added the extras and the four-point gap was enough to see Leinster complete their first five in-a-row over Munster since the 1930s.

BBC: Leinster 13-9 Munster