The last time I saw him was in May.

　　我上次見到他是在五月份。

　　The crisis was at its height in May.

　　危機在五月份到了最嚴重的關頭。

　　The festival is traditionally held in May.

　　這個節日按照傳統是在五月份過的。

　　In May they danced in the streets, buoyed by their victory.

　　5月他們在街上跳舞，為勝利而振奮。