Senses
上面 top
the upper surface or part of something; on top of; above
上面 inside
within the contents of a letter, book, or other documents
上面 above-mentioned
the previous part of a text or sequence; what was mentioned earlier
上面 higher authorities
those in higher positions of power; superiors; the central government
上面 aspect
a particular respect or area of focus; a certain domain
上面 older generation
family members of an older generation or siblings who were born earlier