christmas is the time for family reunions

问题描述:

christmas is the time for family reunions
reunions为什么要加s?

reunion在这个场合是可数名词单数.
你可以说:christmas is the / a time for family reunions.
也可以说:christmas is the / a time for a family reunion.
(注意:可数名词是单数时,前面要加a / an,否则就是复数形式.以上的短语就是这样的.)