十二个序数词英文怎么说

十二个英语序数词分别是：

first
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
eleventh
twelfth

它们的来源是从古英语时期开始使用的。它们是从单词本身构成的，例如"first"是从"one"和"fore"构成的，其中"fore"意为"前"。

英文例句及翻译：

The first day of school is always exciting.
(学校的第一天总是令人兴奋。)
I got my second vaccine shot last week.
(我上周接种了第二针疫苗。)
In the third quarter, the team scored 10 points.
(在第三节，球队得分10分。)
This is the fourth time I've watched this movie.
(这是我第四次看这部电影。)
The fifth member of the band was added last year.
(乐队的第五个成员是去年加入的。)