1
[N-COUNT 可数名词]一千年;千年期 A
millennium is a period of one thousand years, especially one which begins and ends with a year ending in '000', for example the period from the year 1000 to the year 2000.
2
[N-SING 单数名词]2000年;千禧年 Many people refer to the year 2000 as
the Millennium .
Usage Note :
Be careful with the spelling of this word.
注意该词的拼写。