The 800 metres is the fourth event of the afternoon.

　　800米賽是下午的第四項比賽。

　　The strike is entering its fourth week.

　　罷工正進入第四周。

　　He has just earned his fourth MVP award this season.

　　這個賽季他剛獲得了他的第四個“最有價值球員獎”。

　　This was their fourth successive win.

　　這是他們連續第四次獲勝。

　　I had to lug my bags up to the fourth floor.

　　我只得費勁地把我的幾個包拖上五樓。