Sorry I cannot type in Chinese here.
My current school is very strict with dress code, and both teachers and
students need to wear professionally in school, including Friday. So, I
think I can give you some thoughts.
Professional clothes is similar to business casual. So, normally, I wear
nice top, dress pants or skirts, and heels.
If you are going to an interview, the safe choice would be pant suits,
nice shirts and heels (low heels). If you married, wear your engagment ring
and wedding ring,