How often is there a sunset or sunrise?

问题描述:

How often is there a sunset or sunrise?
有很多种答案,
everyday
every day
Everyday
Every day
once a week
Once a week

Every day.第一个字母大写
everyday 是形容词,表示“每天的,日常的,平常的”
例:She wears everyday clothes to work.
她着便装上班.
every day 是副词词组,表示每天
例:She gets up early every day.
她每天起床很早