everyday ,
daily
per day
my salary is USD5 per at's ok.
daily life:日常生活
I do that everyday.
every day和per day 才是每日,而everyday , daily 却是:日常的.前者做状语,后者做定语.
例如:I do my homework every day.我每天做作业．
daily work 日常工作
This is everyday dress.这是日常服装．
楼上两位弄错了吧,应该是every day.