英汉词典

1. 第四
    The fourth item in a series is the one that you count as number four.

    e.g. Last year's winner Greg Lemond of the United States is in fourth place.
           去年的冠军、来自美国的格雷格·莱蒙德现在排名第 4。

2. 四分之一
    A fourth is one of four equal parts of something.

    e.g. Three-fourths of the public say they favor a national referendum on the issue.
           四分之三的公众表示希望就这个问题进行全民公决。